According to the data on the label, the microwave oven requires 120 volts of alternating (AC) to work and uses 5 amps (amperes) in current while in use.There is a 6.0 resistance.To compute watts, you also can multiply the microwave's amps by the outlet's volts.After obtaining the wattage, divide it by 1000 to obtain kilowatts.
How can you calculate how much energy a device uses in an hour?Power multiplied by time is equal to electricity.The total amount of energy is spent depending how much energy each one of your electronic devices requires overall and also how long it are left on now in your home.One thousand volts of energy are used during one hour to make one kilowatt.
How are energy estimations for ovens done?Usually, ovens require between 2000 & 5000 watts.To obtain a feel of your oven's wattage, the quantity from watts to kilowatts, divide it by 1000.
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The energy of the electron of hydrogen atom in its nth orbit is given by E n =− n 2 13.6
electron volt(eV). Based on this formula.
(i) Draw different energy levels corresponding to n=1,2,3,4,5,6 and [infinity].
(ii) Show Lyman and Baler series of emission spectrum of hydrogen atom by drawing various electronic transitions.
(iii) Find the ionisation energy of hydrogen atom.
Answer:
i) E1 = -13.6/1² = -13.6eV
E2 = -13.6/2² = -3.4 eV
E3 = -13.6/3² = -1.51 eV
E4 = -13.6/4² = -0.85 eV
E5 = -13.6/5² = -0.544 eV
E6 = -13.6/6² = -0.377 eV
E∞ = 0
ii) Lyman series obtained when there is electron transition from n = 2,3,4,5,6... to n1=1
Baler series obtained when there is a transition from n = 3,4,5,6.. to n1 = 2
iii) E ( ionisation) = E∞ - E1 = 0 - (- 13.6) = 13.6 eV
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the area of a square metal is 600mm square.calculate it's New area when it's temperature is raised by 15k ( linear expansivity of metal=1.9*10-5 k-1
Answer:
ΔL = L * 1.9E-5 * ΔT
ΔA = A * 2 * 1.9E-5 * ΔT
ΔA = .6 * 3.8E-5 * 1.5E4 mm = .34 mm
New area = 600.34 mm
Note: (L + ΔL)^2 = L + 2 L ΔL + ΔL^2 where ΔL is a small quantity
(L + ΔL)^2 - L^2 = 2 L ΔL = L ΔA
where the coefficient of area expansivity is twice that of linear expansivity
30 points & not that hard
The town of Fairfield, Connecticut is located on the east coast of the United States and is proposing clean energy projects such as solar panel farms to help reduce
carbon dioxide emissions and reduce electrical power costs to the town. The town has created a Clean Energy Task Force to lead these projects. You are going to attend a town meeting to ask questions about their proposals to install solar farms in various locations such as the parking lots of local high schools and over a
former landfill.
List at least 5 questions you should ask the Clean Energy Task Force before you make a decision.
(Please write a minimum of three sentences)
First I would ask
how much their budget is for one year. Next I would ask how they are going to have more clean energy. Other questions I would ask are where will you install the solar farms, will the farms impact local businesses and how much dirty energy they want to get out of the atmosphere
how long would a day be if the earth were rotating so fast that objects at the equator were apparently weightless?
A day would be 85 min long if the earth were rotating so fast that objects at the equator were apparently weightless.
At the equator, the centrifugal force and gravitational force must be equal in order to feel weightless.
[tex]\frac{mv^{2} }{R} = mg[/tex]
∴ [tex]v = \sqrt{gR}[/tex]
[tex]\frac{2\pi r}{T} = \sqrt{gR}[/tex]
[tex]{T} = \frac{2\pi r}\sqrt{gR}[/tex]
[tex]T= \frac{2 \pi (64000)}{\sqrt{9.8(64000)} }[/tex]
T = 5.07×10³s
∴T = 85 min.
What is Earth's rotation?While Earth rotates on its axis from west to east, the Sun and Moon appear to move across the sky from east to west. The term "rotation" in science refers to the Earth's rotation about its axis. The axis has an angle of 23 1/2° and is parallel to the Earth's orbital plane. The fact that the northern and southern hemispheres tilt away from the Sun suggests that the Earth's axis is inclined. The Earth revolves, dividing it into a lit up and dark half, resulting in day and night. You can tell which way the Earth is rotating depending on your point of view. When looking downward from the North Pole, Earth turns anticlockwise. When seen from the south pole, however, the world revolves anticlockwise.
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Visible light has a higher frequency than radio waves on the electromagnetic spectrum. How does the wavelength of visible light compare to radio waves?.
The wavelength of visible light compare to radio waves in the sense that visible light waves have a shorter wavelength than radio waves.
What is wavelength?The wavelength is described as the spatial period of a periodic wave which is the distance over which the wave's shape repeats.
Radio waves are electromagnetic waves that are produced by man with an oscillating circuit.
Radio waves are used in broadcasting, the waves used in television are those of shorter wavelength and those of radio are those of longer wavelength.
Longer radions are reflected in the ionosphere and can be detected in antennas which is located at great distances from the emitting source. The medium waves are less reflected in the ionosphere, due to their large wavelength they can overcome obstacles, so they can travel great distances.
It is known that the visible radiation waves have a wavelength between approximately 400 and 700 nanometers, the radio waves range from 1 centimeter to 1 km, so they have longer wavelengths than the waves belonging to the visible spectrum.
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perceiving the color, motion, and form of a bird in flight illustrates a. parallel processing. %. opponent-process theory. q. trichromatic theory. d. serial processing. place theory.
parallel processing perceiving the color, motion, and form of a bird in flight illustrates.
Option a is correct.
The trichromatic hypothesis of colour perception is what?According to the trichromatic theory, our ability to perceive red, green, and blue hues as well as how they affect our cerebral activity are both explained by cones (Like a projection T.V.). Consequently, the precise colour we see is determined by the proportion of each colour to the others.
What foundation does trichromatic theory have?The three kinds of cone receptors that are responsible for colour vision are the foundation of the trichromatic hypothesis of colour vision. Beginning in the 18th century, this hypothesis has a very long history.
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If two vectors are perpendicular to each other, their cross product must be zero.
a. Trueb. False
a. True If two vectors are perpendicular to each other, their cross product must be zero.
Their cross product is 0 when two vectors are perpendicular, right?The vector is always equal to its cross-vector product. A line that is perpendicular to another line will create an angle of 900 degrees between them. As a result, even if two provided vectors are perpendicular, their cross product does not equal zero, but their dot product does.
A 90 degree angle is created between two vectors when they are perpendicular to one another. As we all know, the cross product of two vectors is equal to the product of the magnitudes of the vectors and the sine of the angle between them.
The dot product of two vectors that are perpendicular to one another is equal to zero.
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What is the weight in newtons of a 5 kg mass?
Answer:
weight =mass ×gravity
Explanation:
gravity =9.8
9.8×5
=49.05N
hope it helps
Answer:
50N (using 10N/kg)
Explanation:
mass*gravitational field strength
5*10
50N
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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the mass of an electron is 9.10939 x 10-31 kg. calculate the uncertainty in position if the velocity is 100.0 mi/h 1.0 %. ( 1 mi
The uncertainty in position if the velocity is 100.0 mi/h 1.0 % is 5.19 x 10-36 m.
What is velocity?Velocity is a vector quantity that describes the rate and direction of an object's motion. It is typically expressed as the magnitude of the speed of an object in a given direction. Velocity can be determined by measuring the displacement of an object over a certain amount of time. It is an important concept in physics, as it is used to describe the motion of objects. Velocity is closely related to other physical quantities such as acceleration, momentum, and force.
The uncertainty in position can be determined using Heisenberg's Uncertainty Principle. This states that the product of the uncertainty in position and the uncertainty in momentum must be greater than or equal to the Planck constant (h) divided by 4π. The momentum of the electron is equal to its mass multiplied by its velocity. Thus, the uncertainty in position is equal to (h)/(4πmv), where m is the mass of the electron and v is the velocity. In this case, this would be equal to
(6.626 x 10-34 Js)/(4π x 9.10939 x 10-31 kg x (100.0 mi/h x 1609.34 m/mi))
=5.19 x 10-36 m.
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if betelgeuse were to radiate all of its energy at the peak-intensity wavelength, how many photons per second would it radiate?
if Betelgeuse were to radiate all of its energy at the peak-intensity wavelength, how many photons.
What is energy?
Energy, which is observable in the execution of labour as well as in the form of heat and light, is the quantitative quality that is transferred to a body or to a physical system in physics. It is a mechanically accepted quantity.
a )
Radius of the sun = .69645 x 10⁹ m .
600 times = 600 x .69645 x 10⁹ m
= 4.1787 x 10¹¹ m .
surface area A = 4π (4.1787 x 10¹¹)²
= 219.317 x 10²²
energy radiated E = σ A Τ⁴
= 5.67 x 10⁻⁸ x 219.317 x 10²² x (3000)⁴
= 100695 x 10²⁶ J
To know the wavelength of photon emitted
[tex]\begin{aligned}& \lambda_m T=b \\& \lambda_m=\frac{b}{T}\end{aligned}[/tex]
= 2.89777 x 10⁻³ / 3000
= 966 nm
= 1275 /966 eV
1.32 x 1.6 x 10⁻¹⁹ J
= 2.112 x 10⁻¹⁹ J
No of photons radiated = 100695 x 10²⁶ / 2.112 x 10⁻¹⁹
= 47677.5 x 10⁴⁵
= .476 x 10⁵⁰ .
b )
energy radiated by our sun per second
E₂ = σ A 5800⁴
energy radiated by Betelgeuse per second
E₁ = σ x 600²A x 3000⁴
E₁ / E₂ = σ x 600²A x 3000⁴ / σ A 5800⁴
= 36 X 10⁴ x 3⁴ x 10¹² / 58⁴ x 10⁸
= 25.76 x 10⁸ x 10⁻⁵
= 25760 times .
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Complete Question
The red giant Betelgeuse has a surface temperature of 3000 K and is 600 times the diameter of our sun. (If our sun were that large, we would be inside it!) Assume that it radiates like an ideal blackbody.a) If Betelgeuse were to radiate all of its energy at the peak-intensity wavelength, how many photons per second would it radiate?b) Find the ratio of the power radiated by Betelgeuse to the power radiated by our sun (at 5800 K).
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A 0.15 kg baseball reaches a batter with a speed of 32.0 m/s. If a 0.94 kg bat, moving with a speed of 41.0 m/s, hits the baseball, what is the speed of the baseball right after the elastic collision? Assume the bat speed does not change.
A batter is struck with a baseball that weighs 0.15 kg at a speed exceeding 32.0 m/s. When a 0.94 kilogram bat. After a collision, the baseball's final speed was 24 m/s.
What is speed and what is its unit?The pace at which a distance changes over time is referred to as speed. It has a dimension of time-distance. As a result, the fundamental unit of time and indeed the basic unit pf distance are combined to form the Special name of speed.
How do find speed?Speed indicates how quickly thing or an individual are moving. If you know how far something has traveled and how long it took to get there, you can calculate its average speed. Speed is calculated as follows: speed = distance * time.
Briefing:Mass of baseball, m=0.15kg,
Mass of bat, M=1.4kg,
Initial speed of baseball, u=-32 m/s,
Initial speed of bat, U=41 m/s
Final speed of bat, V=35 m/s,
Linear momentum, mu+MU = mv+MV
(0.15" " kg×-32" " m/s)+(1.4" " kg×41" " m/s)
=(0.15" " kg ×v)+(1.4" " kg×35" " m/s)
-4.8+57.4 = 0.15v+49
0.15v = 3.6
v=(3.6)/(0.15)
v=24m/s
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A car travels 500 km from home at 35 m/s, then travels back at 43 m/s. Find its average speed.
The average speed of the car is 35.6m/s
What is average speed?The average speed is the total distance traveled by the object in a particular time interval. The average speed is a scalar quantity. It is represented by the magnitude and does not have direction. It is measured in meter per second
Therefore average speed = total distance / total time taken
The total distance here is 500+ 500= 1000km = 1×10⁶m
the time taken for the first journey = 500×1000/35= 14285.71 seconds
the time taken for traveling back = 500000/43= 11627.91 seconds
total time taken = 14285.71 + 11627.91 = 25913.62seconds
therefore average speed = 1000000/25913.62
= 35.6m/s
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two parakeets sit on a swing with their combined center of mass 16.0 cm below the pivot. at what frequency (in hz) do they swing?
The two parakeets sitting on the swing with a combined center of mass 16.0 cm below the pivot swings with a frequency of 1.21Hz.
How to calculate frequency of swing?Given the data in the question
Length of pendulum; L=16.0cm =0.16m
Frequency; f=
Using the simple pendulum equation of time:
T2π = √L/9 -------let this be equation 1
Where T is the period of time, L is the length of the pendulum and g is the acceleration due to gravity(9.8m/s² ).
Also formula for Frequency:
f=1/T ------------let this be equation 2
Lets substitute equation 1 into equation 2
f = 1/2π√L/9
f = 1/2π√9/L
We substitute or values into the equation
f=1/2π√[9.8/0.16]
f=1/2π√[57.647-2]
f=1/2π*7.59256s
f=1.21 hZ
Therefore, the two parakeets sitting on the swing with a combined center of mass 16.0 cm below the pivot swings with a frequency of 1.21Hz.
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a satellite of mass m takes time t to orbit a planet. if the satellite had twice as much mass, the time 169) for it to orbit the planet would be
A satellite with mass m orbits a planet in time t. Since a satellite's mass has no bearing on how long it takes to orbit a planet, if the satellite had two times as much mass, the time it would take to do so would be t.
What do satellites do?An object in space known as a satellite orbit or revolves around a larger object. Satellites can be either natural (like the moon circling the Earth) or manmade (such as the International Space Station orbiting the Earth).
What exactly is a man-made satellite?A deliberately built body (with special purposes) that has been launched into orbit using rockets or other propulsion systems is known as an artificial satellite.
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a pipe of cross sectional area 1.2 m2 narrows to a pipe of cross-sectional area 0.4 m2. if the fluid is traveling at 1.7 m/s in the larger pipe, calculate the fluid speed in the narrower pipe.
The fluid speed in the narrower pipe is 4.5 m/s.
The speed of a fluid traveling through a pipe is determined by its cross-sectional area. In this case, a pipe of cross-sectional area 1.2 m2 is narrowing to a pipe of cross-sectional area 0.4 m2. The fluid is currently traveling at 1.7 m/s in the larger pipe. To calculate the fluid speed in the narrower pipe, the following equation can be used:
Speed = (Cross-sectional area of larger pipe/ Cross-sectional area of smaller pipe) × Speed of fluid in larger pipe
In this case, the equation becomes:
Speed = (1.2/0.4) × 1.7 m/s
Speed = 4.5 m/s
Therefore, the fluid speed in the narrower pipe is 4.5 m/s.
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100 POINTS IF YOU CAN ANSWER THIS
If the preferred vehicle is a sports car, what is the conditional distribution for females?
(Table Included)
A. 35.6%
B. 54.2%
C. 0.02%
D. 44.3%
E. 62.6%
Answer:44.3
Explanation:
ou are walking up an icy slope. suddenly your feet slip, and you start to slide backward. will you slide at a constant speed, or will you accelerate?
When climbing an ice slope. Your feet suddenly start to slip, and you begin to slither backward. Because the kinetic friction is greater than the maximum static friction, you will accelerate down the slope.
Kinetic friction - what is it?The resistance an object encounters while in motion as a result of contact between the surface and the thing moving against it is known as the kinetic friction force. Always acting in the opposite direction from the object's motion is the kinetic friction force. This explains why we often find that kinetic friction causes an object to move backward when we try to move it forward.
Static friction - what is it?An object moving along a path is resisted by a force known as static friction.
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at noon, ship a is 170 km west of ship b. ship a is sailing east at 40 km/h and ship b is sailing north at 25 km/h. how fast is the distance between the ships changing at 4:00 pm?
If at noon , the ship A is 170 km west of ship B , then the distance between the ships changing at 4:00 p.m. is 28.85 kmph .
The ship A is 170 km west of ship B and
ship A is sailing east at the speed of 40 km/h ;
ship B is sailing north at the speed of 25 km/h ;
let us consider "x" and "y" as initial position of ships A and B ;
let the distance between ship A and "x" = x ;
let the distance between ship B and "x" = y ;
let the distance between ship A and ship B = z ;
By using Pythagoras Theorem ; z² = x² + y² ;
differentiating w.r.t. "t" ,
we get ;
2z*dz/dt = 2x*dx/dt + 2y*dy/dt
on Dividing equation by 2 on both sides ;
z*dz/dt = x*dx/dt + y*dy/dt .....equation(1)
given ; dx/dt = 40 km/hr and dy/dt = 25 km/hr
Now , When t = 4 hours,
since at noon ; the ship A is west of Ship B ;
we get ; x = 40*4 = 170 - 160 = 10 ; y = 25*4 = 100 and
z = √(x² + y²) , putting the values of x and y ,
we get ;
z = √(x² + y²) ;
z = √(10² + 100²) ;
substituting the values ; we get
z = √100+10000
z = √10100
z = 100.49
putting the values of x , y and z , in equation(1) ,
we get ;
100.49*dz/dt = 10*40 + 100*25 ;
100.49*dz/dt = 400 + 2500
100.49*dz/dt = 2900
dz/dt = 2900/100.49
dz/dt = 28.85 kmph ;
Therefore , The distance between the ships is changing at 4:00 p.m. is 28.85 kmph .
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a motor lifts a mass m a height of 13 m in a time of 5.2 s. if the power output of the motor is 187 w, what is the mass in kg?
The required mass in kg when the power output, time, height are given is 7.63 kg.
We know that, the formula for power output for a motor is
Power P = (m* g*h)/t
where,
m is the mass in kg
g is the acceleration due to gravity in m/s²
h is the height in m
t is the time in sec
Given that,
P = 187 W
g = 9.8 m/s²
h = 13 m
t = 5.2 s
m = ?
Making m as subject in the above equation, we get,
m = (P* t)/(g* h) = (187* 5.2)/(9.8* 13) = 7.63 kg.
Thus, the required mass in kg is 7.63 kg.
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a runner has a mass of 89 kilograms. he produces a force of 84 newtons between the ground and his running shoes. how fast does he accelerate?
a thin film of thickness 280 nm and index of refraction 1.4 coats a plate of glass having index of refraction 1.65. if light is perpendicularly incident on the glass, at what wavelength is the reflected light minimal?
If a thin layer with an index of refraction of 1.4 and a thickness of 280 nm coats a glass plate with an index of refraction of 1.65, the minimum wavelength of the reflected light is 182 nm.
What is the wavelength, exactly?When a waveform signal travels across space or down a wire, its wavelength is the distance between two identical locations (adjacent crests) in adjacent cycles. The standard units of measurement for this length in wireless systems are meters (m), centimeters (cm), or millimeters (mm) (mm).
Light is coming from a medium with a lower refractive index (n 1 = 1.50) into a medium with a higher index (n 2 = 1.60), so the net path difference in the reflected rays from the two interfaces will be equal to 2t (where t is the thickness of the thin film), because when that happens, light will enter the higher index medium.
When light travels from air to a thin film, the reflected ray's path shift equals 2; when it travels from a thin film to glass, the reflected ray's path shift equals 2′ /2+2t for constructive interference; 2t=m or 2t=m/n 1 where is the wavelength in the thin film, =546nm (given) wavelength in vacuum, and m=0 (minimum); thus, t
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A 1.2-kg spring-activated toy bomb slides on a smooth surface along the x-axis with a speed of 0.50 m/s. At the origin 0, the bomb explodes into two fragments. Fragment 1 has a mass of 0.40 kg and a speed of 0.90 m/s along the negative y-axis. In the figure, the energy released by the explosion is closest to?
The velocity of fragment 2 is equal to 0.88 m/s at 31°.
What is law of conservation of linear momentum?From the law of conservation of momentum, the sum of the momentum before and after the collision must be equal.
m₁ u₁ + m₂.u₂ = m₁ v₁ + m₂.v₂
where m₁ & m₂ is the mass of the collided objects, u₁ & u₂ are their initial speed while v₁ & v₂ is their final speed.
Given, the mass of the spring, m = 1.2 kg
The speed of the spring, v = 0.50 m/s
The mass of the first fragment, m₁ = 0.4 kg
The initial speed of fragment 1, u₁ = 0.9 m/s
The mass of the fragment, m₂ = 1.2 - 0.4 = 0.8 kg
In x-direction: [tex]mucos\theta = m_1v_1 cos\theta + m_2 v_2 cos\theta[/tex]
1.2 ×0.5 ×cos(0) = 0 + 0.8× v₂ cosθ
v₂ cosθ = 0.75
In y-direction: 12 (0) = -0.4(0.9) + 0.8 v₂ sinθ
v₂ sinθ = 0.45
Now, [tex]\displaystyle \frac{v_2sin\theta}{v_2cos\theta} =\frac{0.45}{0.75}[/tex]
tanθ = 0.6
θ = 31°
The value of the velocity of the fragment can be calculated as;
v₂ sinθ = 0.45
v₂ sin31 = 0.45
v₂ = 0.88 m/s
Thus, the magnitude of the velocity of fragment 2 is 0.88 m/s at 31⁰.
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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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jerome wants to photograph runners at a track meet. he wants his photographs to show motion. which type of setting will help emphasize a blur of motion?
XXX high shutter speed is the kind of setting that will help emphasise motion blur.
Motion blur is the appearance of moving objects streaming across a frame or sequence of frames, such as in a video or animation. When there is rapid movement or a long exposure, it occurs when the image being recorded changes throughout the course of one exposure. In both photography and video, motion blur is a result of the shutter speed, or how long the iris of the camera is open and exposed. When exposed for a longer period of time with a slower shutter speed than they would with a faster one, moving objects move further and fuzz more. Both photography and video can capture the motion blur effect, although they do it in somewhat different ways and for slightly different reasons. On the other hand, the effect itself is essentially the same in both mediums.
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which has the greatest inertia
A. Jumbo Jet
B. Bird
C. Car
Answer:C car
Explanation:
A robot that is exploring the surface of Mars has a mass of 136 kg. If the gravitational force acting on the robot is 504.6 N downward, what is the free-fall acceleration on Mars?
The free-fall acceleration on Mars is 3.71 m/s²
What do you mean by free fall?A body is said to be in freefall when it only moves in relation to the Earth's gravity. An external force exerted on the ball will cause its motion to accelerate. Gravitational acceleration is another name for this rate of free fall.According to Newton's second law of motion, force (F) = mass (m) times acceleration, an item in free fall will move with an acceleration (a). We can use a little mathematics to determine the object's acceleration in terms of the net external force and the object's mass (a = F / m).Given :
gravitational force acting on the robot is 504.6 N
F= 504.6 N
mass of the robot = 136 kg
a = F/ m
= 504.6/ 136 =3.71 m/s²
The free-fall acceleration on Mars is 3.71 m/s²
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ocean waves and electromagnetic waves are similar in that they both transmit energy. t or f
Answer:
the answer is true they actually do
based on this image alone, approximately how much of the galaxy's total mass is located within 5 kpc of the center, would you say?
The total mass of the galaxy within a radius of 5 kpc is approximately 3.25 billion solar masses.
A galaxy is a system of stars, remnants of stars, interstellar gas, dust, dark matter, bound together by gravity.
By using the equations of Newtonian mechanics, the total mass of the galaxy can be calculated by combining the mass of the stars, gas, dust, and dark matter within the 5 kpc radius.
The calculation can be made more accurate by adding in accurate estimates of the mass of the dark matter and other components of the galaxy.The total mass of a galaxy within a radius of 5 kpc can be calculated using the equation:
Mass = 2.3 x 10⁶ x (5 kpc)² x (1 solar mass/pc³)
Mass = 3.25 billion solar masses.
This calculation provided an approximate total mass for the galaxy, which is estimated to be 3.5 billion solar masses located within 5 kpc of the center.
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a btu is defined as the amount of energy required to raise the temperature of one lb of water by one degree celsius group of answer choices true false
A BTU is defined as the amount of energy required to raise the temperature of one lb of water by one-degree celsius is False.
A British thermal unit is a measure of the amount of heat in a fuel or energy source. This is the amount of heat required to raise the temperature of 1 pound of liquid water by 1 degree Fahrenheit, the temperature at which water reaches its maximum density.
BTU is the amount of energy required to raise the temperature of 1 pound of water to 1 degree Fahrenheit above sea level. Technically, this measurement refers to the amount of energy required for this process when water is at its maximum density.
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