A radiator cap's purpose is to relieve excess pressure caused by the coolant expanding as it heats up using two one-way valves.
What happens if the cooling system's pressure is raised?
The coolant expands as it warms up. The final outcome is a rise in pressure because the system's size remains constant. The coolant's boiling point does, however, rise as the pressure does, which is a benefit. At atmospheric pressure, pure water boils at 212 degrees Fahrenheit.
What regulates the cooling system's pressure?
The pressure in the cooling system rises as the temperature of the coolant does as well.
The radiator cap regulates this pressure
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8. The following 1 ⁄4 W resistors are in series: and What is the maximum voltage that can be applied across the series resistors without exceeding a power rating? Which resistor will burn out first if excessive voltage
Answer:
Explanation:
w
The maximum voltage that can be applied across the series resistors is Vtmax = 86.2 V. Resistor 5.6k Q will burn out first if the excessive voltage is applied.
What is a resistor?
A resistor is a passive two-terminal electrical component used in circuits to implement electrical resistance. Resistors have a variety of uses in electronic circuits, including lowering current flow, adjusting signal levels, dividing voltages, biasing active components, and terminating transmission lines.
Electrical parts called rheostats are constructed from resistive wire wound around a ceramic core. They were once employed to regulate the amount of power used by ovens, heaters, and motors.
The following 1 ⁄4 W resistors are in series and the voltages in each are:
1.2k - 8.02 V2.2k Q - 14.7 V3.9k 2 - 26.1 V5.6k Q - 37.4 VTherefore, the Vtmax = 86.2 V is the highest voltage that can be applied across the series resistors. The 5.6k Q resistor will burn out first if too much voltage is applied.
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The question is incomplete. Your most probably complete question is given below:
Problems related to Power in Series Circuits
Q.1 The following 1/4 W resistors are in series: 1.2k, 2.2k Q, 3.9k 2, and 5.6k Q. What is the maximum voltage that can be applied across the series resistors without exceeding a power rating? Which resistor will burn out first if excessive voltage is applied?
Corey, whose mass is 95 kg , stands on a bathroom scale in an elevator. The scale reads 810 N for the first 3.0 s after the elevator starts to move, then 930 N for the next 3.0 s .
Velocity of the elevator after 3 seconds is equal to v₂ = 3.79 m/s. The same two forces that were at play when the elevator was speeding up are still present. The normal force, which is less than at rest.
How to calculate?given,
mass of Corey = 95 Kg
reading of sale for first 3.0 s when elevator start to move = 810 N
scale reading for 3.0 s = 930 N
Gravitation force acting =
F = m g
F = 95 x 9.8
F = 931 N
using newton's second law, due to movement of elevator
F_{net} = m a
W - N = m a₁
930- 810 = 95 x a₁
a₁ = 1.26 m/s²
now,
velocity calculation
v₁ = a₁t
v₁ = 1.26 x 3.0 = 3.78 m/s
now, For second case
931 - 930 = 95 x a₂
a₂ = 0.010 m/s²
now, velocity after 3.0 s
v₂ = v₁ + a₂ t
v₂ = 3.78 + 0.010 x (3 - 3)
(3-3) because velocity after 3 second is calculate we need to calculate velocity after 3 s from beginning.
v₂ = 3.78 + 0.010
v₂ = 3.78 m/s
velocity of the elevator is equal to v₂ = 3.79 m/s.
What two forces are at work on you when an elevator is moving?When a person is moving in an elevator, there are two forces at work on him: gravity and the elevator's normal force. The elevator is stationary or travelling at a constant speed, and the two forces are of equivalent strength. When the elevator is accelerating uphill or downward, their magnitudes are not identical.
What movement does an elevator make as it ascends?Since an elevator will move in a straight path with a constant speed, it exhibits uniform linear motion.
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a planet has 1/2 the mass of earth and 2 times the radius of earth. what is the acceleration due to gravity?
The acceleration due to gravity on a planet with 1/2 the mass of Earth and 2 times the radius of Earth would be one fourth of the acceleration due to gravity on Earth.
What is accelaration?Acceleration is the rate of change of velocity in a given direction. It is a vector quantity, meaning it has both a magnitude (or amount) and a direction associated with it. Acceleration is caused by forces, such as gravity, friction, engine thrust, or any other unbalanced force. It is measured in meters per second squared (m/s2). Acceleration can also be negative, meaning that it is in the opposite direction of the velocity. When an object is accelerating, its speed is increasing but its direction can be changing or staying the same.
This is because the acceleration due to gravity is inversely proportional to the square of the radius, and directly proportional to the mass. Therefore, the acceleration due to gravity on the planet would be (1/2)(1/4) = 1/8 of Earth's gravity.
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A 30.0-kg load is being held in place using massless wires in the ideal pulley arrangement shown in the figure. What is the magnitude of the force F?
A very light wire is used to hang a series of 8.0-kg bricks. This wire will break if the tension in it exceeds 450 N. The bricks are hung one below the other from a hook in the ceiling using this wire, as shown in the figure.
(a) How many whole bricks can be hung without breaking the wire?
(b) If you add one more brick to the number found in part (a), which string will break?
the law of conservation of energy cannot be created nor destroyed, it can only change form. if this is the case, why are we worried about energy sources in our world?
Energy cannot be generated or destroyed; it can only be changed from one form of energy to another, according to the rule of conservation of energy. This implies that a system always possesses the same amount of energy, barring external energy addition.
In the event that energy cannot be generated or destroyed, why is there a crisis?According to the rule of conservation of energy, energy cannot be generated or destroyed. It can only be changed from one form to another, though. It is simply changed from a form that we can use to one that is less useful. Energy problem as a result of this
Energy efficiency is necessary to save expenses and extend the life of the resources.
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if it requires energy u to accelerate a rocket fro rest to 1/2c the energy needed to acclerate a rocket from 1/2 c to c would be
The energy needed to accelerate a rocket from 1/2 c to c would be 3 times of U if it require U to accelerate from rest to 1/2c.
Now,we know that kinetic energy of rocket is given by =(1/2)mv² where m is the mass of the rocket and v is the velocity of rocket.
According to work-energy theorem,we know that work done=change in kinetic energy of the body.
Here,we have initial velocity of rocket is =0,and final velocity of rocket =1/2c
So,Work done=(1/2) ×m×(1/2)c² - 0²
=>U=(1 / 4) ×(1/2)×m×c²-------(eq1)
Now,we need to find the required amount of kinetic to accelerate it from 1/2c to c
So, required kinetic energy is Work done=(1/2)mc² - (1/2)×m×(1/2)c²
=>Required kinetic energy=(1/2×m×c²) × (1-1/4)
=>Required kinetic energy=(3/4)×(1/2×m×c²)
=>Required kinetic energy=(3)×((1 / 4) ×(1/2)×m×c²)
=>Required kinetic energy=3 ×times of U(from eq1)
Hence,kinetic energy required is 3 times of U.
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the amplitude of a lightly damped oscillator decreases by 3.72% during each cycle. what percentage of the mechanical energy of the oscillator is lost in each cycle?
The mechanical energy of the oscillator is lost in each cycle is 7.44%.
What is mechanical energy?Mechanical energy- (Kinetic energy or potential energy-) is the energy- of either an objective in motions or the energy that is stored in objects by their position. Mechanical energy is also a driver of renewables to energy. Many forms of the renewable energy relying on Mechanical energy to be the adequately produced power or converted energy.
Since the energy is proportional to the amplitudes squared,then we found the fractional changes (assumed small) is,
EE ,−E≈ E
dE=xm2dx
m2=xm2
2xmdxm=2x
mdx.m
Thus, if we approximately the fractional changes in x
mas x mdx m
then the above-mentioned calculations of shows that multiplying by this by 2 should be give them fractional energy- change. Therefore, if x
m decreases by 3.72%, then E must decreased by 7.44%.
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Assuming Birdman flies at a speed
of 35 m/s, how high should Birdman
fly to hit the bucket if the bucket is
placed 147 m from the start of the
field?
The birdman needs to soar 86.43m in the air to hit the bucket.
How can I calculate the horizontal speed?The ball's diameter, d, and the amount of time, t, it takes to cross the photogate can both be used to calculate the beginning horizontal velocity. Vo = d/t, then.
Time of motion of the birdman
The duration of the birdman's motion is the amount of time it takes for him to soar to his highest point.
R = Vₓt
where;
R is the birdman's motion's range or his horizontal distance.
Time of motion is t.
The horizontal speed is Vx.
t = R/Vₓ
t = 147/ 35
t = 4.2 seconds
Maximum height the missile has climbed
h = ¹/₂gt²
where;
The birdman's height is measured in h.
Gravitational acceleration, or g,
h = ¹/₂(9.8)(4.2)²
h = 86.43 m
The birdman must therefore fly to a height of 86.43m in order to hit the bucket.
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protons within a nucleus are attracted to each other by group of answer choices the nuclear force. opposite charges. their energy levels. electron repulsion.
Protons within a nucleus are attracted to each other because of a)the nuclear force.So,correct option is a.
One thing that actually helps to reduce the repulsion between the protons within a nucleus is due to the presence of neutrons. Since they have no charge so, they don't add to the repulsion which is already present, and they help to separate the protons from each other so they don't feel as strong a repulsive force from any other nearby protons.Because of presence of neutons,nucleus attracts the protons with strong nuclear force.
Now two type of force are acting on proton one is repulsive force due to same charge and nuclear force due to protons.Here nuclear force are more stronger than repulsive force due to that nucleus remains stable.
Hence, correct option is a.
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(Complete question) is:
protons within a nucleus are attracted to each other by group of answer choices
a) the nuclear force.
b)opposite charges.
c) their energy levels.
d)electron repulsion.
a student needs to find the mass of an atom. the numbers of which atomic particles determines the mass of the atom?
Answer:
Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.
Explanation:
Hot water is poured into a mug and the mug gets hot. This is an example of which type of energy transfer?
A) Radiation
B) Conduction
C) Convection
D) This is not an energy transfer
Answer:
conduction i think
Explanation:
Answer:Conduction
Explanation:
Which of the following identifies a treatment method developed after the discovery of germ theory?
O Perform a bloodletting procedure.
O Recommend frequent hand washing.
O Induce the patient to vomit.
O Treat the infection with an antibiotic.
Recommend frequent hand washing are the treatment method developed after the discovery of germ theory.
What is the importance and benefits of proper handwashing?Handwashing reduces the spread of contagious diseases: Contaminated hands can transmit a variety of contagious illnesses from one person to another. These illnesses include respiratory infections like the flu, colds, and coronavirus (COVID-19), as well as gastrointestinal infections like salmonellosis.The simplest and most reliable approach we all have to stop the transmission of illnesses spread through touch is to practise good hygiene. Our hands are home to more than 150 different types of germs. Additionally, compared to men, women's hands often have more germs on them.Thus, eliminating germs by handwashing aids in the prevention of diarrhoea, respiratory infections, and maybe even skin and eye diseases.Learn more about steps of proper handwashing refer to :
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Question 16 During a rocket launch, the action force is considered the force of explosion from the burning fuel and expanding gases. Which of the following would be considered the reaction force?
The reaction force to the action force during a rocket launch would be C. the force exerted by the ground or launch pad on the rocket.
How to illustrate the force?The force that the ground or launch pad applies to the rocket during a rocket launch will act as a reaction force to the action force. The rocket is propelled upward by the force of explosion caused by the burning fuel and expanding gases. The force that keeps the rocket grounded and keeps it from moving is known as the reaction force, and it is the force that the launch pad or ground exerts in response to this action force.
Equal in magnitude but directed in the opposite direction, the action and reaction forces act on various objects. The reaction force affects the ground or launch pad, whereas the action force affects the rocket.
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Complete question
During a rocket launch, the action force is considered the force of explosion from the burning fuel and expanding gases. Which of the following would be considered the reaction force?
A. The starting force
B. The force of the explosion
C. The force exerted by the ground or launch pad on the rocket.
If E.M radiation has a frequency of 58,000,000 Hz, what is the wavelength?
Please include a formula to solve this!
5.16883548 m is the wavelength, if E.M radiation has a frequency of 58,000,000 Hz.
What is the relationship between frequency and wavelength ?When it comes to waves that are travelling, the frequency of a wave is associated with its wavelength and rate of motion. The number of full wave cycles that will finish in 1 second is larger for a quicker wave than for a slower wave. As a result, a wave's velocity plays a critical role in establishing its frequency.It's crucial to remember that two waves might have the same frequency even when their wavelengths are different. Assume Wave 1 has a wavelength of 1 cm, and Wave 2 has a wavelength of 2 cm. Wave 2 must move at a pace that is twice as fast as Wave 1 in order to have the same frequency. Formula of wavelength , λ = C/fGiven data :
Formula:
λ = C/f
Where,
λ (Lambda) = Wavelength in meters
c = Speed of Light (299,792,458 m/s)
f = Frequency
λ = 58,000,000 / 299,792,458 = 5.16883548
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Which of the following is NOT an example of a scalar quantity?
75 degrees Celsius
22.5 miles
2.0 meters, east
258 km
Which of the following is NOT an example of a vector quantity?
75 degrees Celsius
22.5 miles, south
2.0 meters, east
258 km, north
The answers include the following below:
The following which is not an example of a scalar quantity is 2.0 meters, east and is denoted as option C.The following which is not an example of a vector quantity is 75 degrees Celsius and is denoted as option A.What is a Scalar quantity?This is referred to as a quantity or any form of measurement which has magnitude but no direction and examples include 75 degrees Celsius , 22.5 miles etc as no direction is denoted in the measurement which is given in this type of scenario.
On the other hand, vector quantity is the measurement which has both magnitude and direction and examples include 22.5 miles, south , 2.0 meters, east etc which shows the direction in which the body is moving which is therefore the reason why the above options were chosen as the correct answer.
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a 23-month-old child pulls a pan of hot water off the stove and spills it onto her chest and arms. her mother is right there when it happens. what should the mother do immediately?
When it happens mother should have to do cool the burn with tap water for 10 to 20 minutes immediately.
What are the steps to give first aid to a person with a large burn?Stop the burning process. Cool the burn. Supply pain relief.
Before the arrival of qualified emergency help, you should:
Remove restrictive items such as rings, watches, and bracelets.Use a fresh, cool bandage that is moist to cover the burnt area.Raise your hand so that it is higher than your heart.Is burning from boiling water serious?Pain and skin injury from wet heat or vapors can result from hot water scalding. Because the damaged tissues and cells are destroyed, this kind of burn can be deadly. The heat could even cause your body to go into shock. These burns can be fatal in more severe circumstances.
What should I do right away if I am burned?Cool the burn.
Place the affected area under cool (not cold) flowing water for about 10 minutes. Until the pain goes away, apply a cool, wet cloth to the burned area of the face. If you have a mouth burn from hot food or drink, place a piece of ice in your mouth for a while.
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calculate the acceleration of a 250000- kgkg jumbo jet just before takeoff when the thrust on the aircraft is 80000 nn .
0.32 m/s² the acceleration of a 250000 kg jumbo jet just before takeoff when the thrust on the aircraft is 80000 nn.
What is a acceleration explain?Acceleration the rate at which the speed and direction of a moving object vary over time. A point or object going straight forward is accelerated when it accelerates or decelerates. Even though the speed remains constant, motion on a circle accelerates because the directions is always shifting. Due to the fact that it includes both magnitude and direction, velocity is a quantity. As the rate at which velocity changes, acceleration is likewise a vector quantity.
Briefing:The formula may be used to determine an object's acceleration given its mass and the force acting on it.
a= f/m
f is the force
m is the mass
a = 80000 / 250000
a = 0.32 m/s²
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a) what are the s and n axes on an s-n diagram, and what does the region to the left and below the plotted line indicate?
N is the total number of full load cycles, and S is the stress change. The area to the left and below the line represents cyclic stress and cycle count combinations for which no fatigue failure is anticipated to happen.
What do you mean by cyclic stress?The distribution of forces, often known as stresses, under cyclic stress changes repeatedly throughout time. Imagine one of the huge wheels that propels an aerial lift, like a ski lift, as an illustration.
How do you define a cyclic stress-strain curve?The plot of every one of these numbers is known as the cyclic stress-strain curve. Following plastic deformation, the material behaves as described by the curve. Typically, this activity differs from the initial action that is assessed in a conventional tensile test.
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A train is travelling along its railroad tracks. It slows down, goes around a turn, speeds back up, coasts at a constant velocity for awhile, then slows down again.
How many times did the train accelerate?
Responses
1
2
3
4A train is travelling along its railroad tracks. It slows down, goes around a turn, speeds back up, coasts at a constant velocity for awhile, then slows down again.
How many times did the train accelerate?
Responses
1
2
3
4
The number of times the train accelerated is 3 times.
option 3 is the correct answer.
How many times did the train accelerate?
The number of times the train accelerates in the given scenario depends on the speed or velocity of the train at every given time.
a = Δv / Δt
where;
Δv is change in velocity of the trainΔt is the change in time of motionFrom the formula given above, the train will only accelerate whenever there is a change in the velocity of the train. If the velocity of the train is constant, then the acceleration of the train will be zero.
The number of acceleration of the train in the given scenario is determined as follows;
when the train slows downspeeds back upthen slows down againThus, from the illustration given above, the train change its speed three times and accelerated in those situation.
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analysis of the cosmic microwave background helped us understand how energy is distributed in the universe among matter (luminous and dark) and dark energy. which is the correct model for what we observe in our universe?
The Lambda-CDM (cold dark matter) model is the most widely accepted model for the structure and evolution of our universe.
What is universe?
Universe is the totality of all existing things, including all matter and energy, the planets, stars, galaxies, and the contents of intergalactic space. It is the physical universe in its entirety and the totality of all phenomena within it, including all matter and energy that has existed, exists, and will exist. The universe is believed to have begun with the Big Bang, an event that marked the beginning of time and space, and from which all matter and energy have since emerged.
This model is based on observations of the cosmic microwave background, large-scale structure, and the expansion of the universe. It suggests that the universe is composed of about 4.9% ordinary matter, 26.8% dark matter, and 68.3% dark energy.
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if a planetary body (such as a rocky body bigger than about 400 km diameter) is big enough, it will be spherical. why is this:
The larger objects are rounded essentially comes down to gravity. The gravitational pull of an object will always be directed toward its mass centre. The more massive and gravitational attraction something has, the bigger it is.
The strength of the object itself opposes such force for solid objects. For instance, you are not drawn into the centre of the Earth by the downward force of gravity. The reason for this is that the ground is pushing back up at you; it is too strong to allow you to sink through it. The power of Earth has its limits, though. Imagine a massive mountain, like Mount Everest, becoming bigger and bigger as the planet's plates collide. Everest starts to sink as it gets taller due to its weight increasing. The mountain's height will be constrained as a result of the additional weight forcing it deeper into the Earth's mantle.
Hence, planets moves in fixed orbits.
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using your data, how are you able to determine if conservation of momentum occurs in each collision?
Momentum is conserved if the relative velocities before and after the impact are equal.
What does force momentum mean?In most cases, momentum is the quantity that describes the internal motion of any moving object. Force, on the other hand, is the quantity that modifies the degree of action existing when applied to any object. Momentum is the amount of energy contained within a moving item.
What does momentum within daily life actually mean?Momentum is the amount of motion, to put it simply. Quantity may be assessed in this scenario because if an object is moving and has mass, it has momentum. If something is stationary, it doesn't have momentum.
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when an apple is resting on top of a table, how many force pairs (number of pairs not individual forces)act on the apple?
The draw of the earth on the apple and the pull of the apple on the earth are forces operating in pairs (number of pairs, not individual forces).
What forces are at work while something is at rest?Since there is no net force acting on the item while it is resting , the downward force (weight) must counterbalance the force acting upward (normal force). Weight travels downhill, therefore it is always negative. For an item to be at rest, all of the forces must be equal to 0.
Can an object at rest be affected by a force?According to Newton's first rule, in order to have no net force exerted on an object, it must be at rest. Because if there is a total force acting on the object, it will change velocity. It will accelerate.
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calculate the time in seconds it would take for a radio frequency signal to travel round-trip between earth and an meo satellite at 20,000 km.
The speed of light is 299,792,458 m/s.
What is speed of light?
The speed of light is a fundamental physical constant denoted by the letter c. It is the speed at which light propagates through empty space, a vacuum. In the International System of Units (SI), the speed of light is given as exactly 299,792,458 meters per second. This is the speed of light in a vacuum, and because light does not travel at the same speed through different substances, the speed of light in a material is always less than this value.
This means that it takes 1 second for light to travel 299,792,458 m.
Therefore, it would take (20,000,000,000 m / 299,792,458 m/s) = 66.66 seconds for a radio frequency signal to travel round-trip between earth and a MEO satellite at 20,000 km.
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what is the effective spring constant k of the two-spring system? express the effective spring constant in terms of k 1 and k 2 .
The Effective Spring Constant is [tex](\frac{k1k2}{k1 + k2} )[/tex] for a system of 2 springs with spring constant k1 and k2.
What is Spring Constant ?The term "spring constant" refers to the proportional constant k. It gauges the stiffness of the spring. A spring exerts a force F = -kx in the direction of its equilibrium position when it is stretched or compressed to a length that differs by an amount x from its equilibrium length.
Spring constants are available in plural (physics) a quality of a spring that is determined by the force acting on the spring to the displacement it produces.
K stands for the proportionality constant, commonly referred to as the "spring constant." In layman's words, stiffness and strength are shown by the k variable in Hooke's law (F = -kx). An item requires more force to be stretched to a specific length the greater the value of k.
Let the force actiong be F N
then , if k1 is the spring constant of spring 1
F = x1 * k1
or, x1 = F/k1.
Similarly for spring 2
x2 = F/k2
Now x1 + x2 = F (1/k1 + 1/k2)
or effective displacement
X= [tex]F(\frac{1}{k1} + \frac{1}{k2} )[/tex]
or, F = [tex]X * (\frac{k1k2}{k1 + k2} )[/tex]
So the Effective Spring Constant is [tex](\frac{k1k2}{k1 + k2} )[/tex].
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how many full spectral orders can be seen (400 to 700 nm ) on each side of the central maximum when it is illuminated by white light?
When central maximum is illuminated by white light, then six(6) full spectral orders can be seen on each side.
For calculating this we need to know the wavelength of white light when visible light wavelength is in range of 400 to 700nm.
Now, we know that dsinθ=mλ
where d is the distance between slits,
λ is the wavelength
sinθ is the angle made by light with medium
and m is the ratio of wavelength
Firstly, we assign sinθ=1
=>m=d/λ----------eq1
For finding d, we know that d=1/granting
=>d=1/(400×10⁹)
=>d=2.5 ˣ 10⁻⁶m
Now, we know that for finding m we need to put value in eq1
At 400nm wavelength, we get
=>m=2.5 ˣ 10⁻⁶m/400ˣ10⁹m
=>m=6.25
At 700nm wavelength, we get
=>m=2.5 ˣ 10⁻⁶m/700ˣ10⁹m
=>m=3.17
Now, we know that fourth maxima value is 3.17 and seventh maxima value is 6.25
It means there are three maxima in between seventh and fourth maxima.
Total number of maxima on both sides =3ˣ2=6
Hence,6 full spectral orders can be seen.
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At a height of 10.0 meters above Earth's surface, the potential energy of an object is 196 joules.
After the mass falls 5.00 meters, how much kinetic energy does it gain?
Answer:
To determine the change in kinetic energy of the object as it falls from a height of 10.0 meters to 5.00 meters, we can use the equation KE = 1/2 mv^2, where KE is the kinetic energy, m is the mass of the object, and v is the velocity. We can also use the equation for gravitational potential energy, which is PE = mgh, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height above the ground.
We know that the potential energy of the object at a height of 10.0 meters is 196 joules, so we can use this information to solve for the mass of the object:
196 = m * 9.80 * 10.0
196 = 98.0m
m = 2.00 kg
We can then use this value for the mass to find the kinetic energy of the object as it falls from a height of 10.0 meters to 5.00 meters:
KE = 1/2 * 2.00 * v^2
KE = 1/2 * 2.00 * (2gh)^2
KE = 1/2 * 2.00 * (2 * 9.80 * 5.00)^2
KE = 196 joules
Thus, the object gains 196 joules of kinetic energy as it falls from a height of 10.0 meters to 5.00 meters.
At a height of 10.0 meters above Earth's surface, the potential energy of an object is 196 joules. After the mass falls 5.00 meters, 196 joules is the kinetic energy.
What is kinetic energy?Kinetic energy is the type of energy which an item or particle has as a result of its motion. When work, that transfers energy, is performed on an item by exerting a resultant force, the object accelerates and obtains kinetic energy.
Kinetic energy is indeed a characteristic of an object moving or particle that is affected by both its speed and its mass. Translation (or motion across a path from one location to another), rotation on an axis, vibration, and any combination of movements are all possible.
Potential energy=m× g× h
196 = mass×9.80×10.0
m = 2.00 kg
K.E= 1/2×m×v²
KE = 1/2 ×2.00× v²
KE = 1/2 ×2.00× (2gh)²
KE = 1/2 ×2.00 × (2 × 9.80 ×5.00)²
KE = 196 joules
Therefore, 196 joules is the kinetic energy.
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multiple choice
12) When you move your hand or foot, your body has converted potential energy into ________ energy.
13) When coasting while roller skating, you eventually stop due to ________.
14) A ball has 100 J of potential energy when it is on a shelf. The kinetic energy of the ball the instant it hits the floor is ________J.
12). When you move your hand or foot, your body has converted potential energy into kinetic energy.
13). When coasting while roller skating, you eventually stop due to
friction causes kinetic energy to transfer to thermal energy.
14). A ball has 100 J of potential energy when it is on a shelf. The kinetic energy of the ball the instant it hits the floor is Kinetic increases, potential decreases.
What is kinetic energy, and how is it used?Kinetic energy is the force that propels motion, which can be seen in the movement of a particle, an object, or a group of particles. A person walking, a baseball being thrown, a piece of food falling from a table, and a charged particle in an electric field are all examples of objects in motion that use kinetic energy.
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how much energy (in j) must the shock absorbers of a 1180 kg car dissipate in order to damp a bounce that initially has a velocity of 0.760 m/s at the equilibrium position? assume the car returns to its original vertical position.
Since linear momentum equals m v, it varies at each bounce by the same amount, r = R. For instance, if a ball bounces eighty percent of its height each time, it loses twenty percent of its energy each time.
What is the equation for energy acquired or lost?An object's heat uptake or loss and the consequent temperature variations are related by the description above and the following equation (Q = m•C•T).
We now know that heat can occasionally be acquired or lost without a corresponding change in temperature. When the material is changing states, this is what happens.
The mass and speed of an item moving determine how much kinetic energy it has.
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find the work done by the given force field for an object moving across a path that is the boundary of the region bounded by the upper semicircle centered at the origin with radius 2 and the x-axis. assume counterclockwise orientation. hint: use a theorem! you should be able to do this problem without too much computational work. group of answer choices 8 none of these 2 4
The work done by the given force field for an object moving across a path that is the boundary of the region bounded is 10 JOULE
To find the work done by a force field for an object moving across a path that is the boundary of a region, we can use the following equation:
W = ∫F(r)⋅dr
where W is the work done, F(r) is the force field acting on the object, and r is the position vector of the object. The integral is taken over the path of the object.
In this case, the path of the object is the boundary of the region bounded by the upper semicircle centered at the origin with radius 2 and the x-axis. The orientation of the path is counterclockwise. The force field acting on the object is given by:
F(r) = E
where E is a constant force field.
To find the work done by the force field, we can substitute the form of the force field and the path of the object into the work equation and evaluate the integral:
W = ∫E⋅dr
= ∫10⋅dr
= 10 ∫dr
The path of the object is the boundary of the region bounded by the upper semicircle centered at the origin with radius 2 and the x-axis. We can parameterize this path by expressing the position vector r in terms of a parameter t:
r = xi + yj
where x and y are functions of t and i and j are unit vectors in the x and y directions, respectively.
Substituting the parameterized form of the position vector into the work equation, we get:
W = 10 ∫(xi + yj)⋅dr
= 10
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