Answer:
the second one
Explanation:
The chart comes closest to the relationship between kinetic energy and potential energy at point 6 is the second option.
What is kinetic energy?The kinetic energy of an object is associated with its motion. It can be related to the mass and velocity as
K.E = 1/2 mv²
The relationship between kinetic energy and potential energy at point 6 of the roller coaster ride is according to the second pie chart.
Pie chart represents the potential and kinetic energy.
Thus, the second option is correct.
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A skateboarder, starting from the top of a ramp 4,5 m above the ground, skates down the ramp. The mass of the skateboarder and his board is 65 kg
Use the principle of conservation of mechanical energy to calculate the magnitude of the velocity of the skateboarder when he reaches the ground
Answer:
Kinetic Energy at bottom=2886.5J (when g=9.8m/s²)
OR
2925J (if g=10m/s²)
Answer:
Explanation:
The potential energy (PE) of the skateborder (and board) is given by mgh (mass, gravity acceleration, and height). Assuming no friction of any kind, the magnitude of the skateboarder's velocity will be the result of converting the potential energy to kenetic energy (KE), (1/2)mv².
[We only know the magnitude of the velocity since we aren't told in which direction the skateboarder is headed.]
1. Calculate PE:
mgh
(65kg)*(9.61m/s²)*(4.5m) = 2811 kgm²/s² (Joules)
2. Calculate Speed from KE
Since we are assuming no friction nor other forces, all of the PE will be converted to KE, so we can write:
PE = (1/2)mv²
2811 kgm²/s² = (1/2)*(65kg)v²
v² = (2811 kgm²/s²)/((1/2)*(65kg))
v² = 86.49 m²/s²
v = 9.3 m/s : The magnitude of the velocity.
===================
I vote pointing the skateboarder west, where the gold is. His velocity would be 9.3 m/s West.
What is the Scientific name for Ectoparasites?
Ectoparasites are a taxonomically diverse group of organisms that infest the skin of human beings and other animals. Ectoparasitic arthropods and nematodes are similar in that an individual organism can produce skin lesions that are large enough to see with the unaided eye. Ectoparasitic infestations are often intensely itchy, causing considerable annoyance and discomfort. These conditions are often focally hyperendemic in impoverished communities, with a particularly high prevalence in vulnerable families, households, and neighborhoods.
Pediculosis (infestation by head and body lice) and scabies are found to some degree in all human populations, but myiasis (fly larva infestation), tungiasis (sand flea disease), and cutaneous larva migrans occur mainly in tropical and subtropical environments. Except for body lice, the organisms discussed in this article are not vectors of pathogenic microorganisms. In other words, most ectoparasites do not carry disease-causing agents; they are, instead, the direct cause of disease. Mortality is low, but the cumulative morbidity from the direct discomfort, secondary bacterial infections, and sequelae of those infestations and infections is considerable.
Despite the abundant presence of ectoparasitic infestations across human populations, biomedical science lacks firm evidence-based practices to reliably control these organisms. In addition, head lice and scabies are developing resistance to some chemical compounds employed to treat infested individuals, prevent spread, and control outbreaks.
Please mark me brainliest.
Tommy, who has a mass of 30 kg, sits 4.0 meters from the center of a
merry-go-round that is rotating with a period of 10 seconds. What is the
centripetal force acting on Tommy?
Answer:
Fc= 47.363 N
Explanation:
First, you need tangential velocity because they don't give that to you in the problem.
So, the formula for tangential velocity is υ=2πr/t.
For this problem its v=2π4/10= 2.513 m/s
Then we plug this into our equation for centripetal force
Fc= 30*(2.513)^2/4=47.363 N
Fc=47.363 N
The centripetal force acting on Tommy is 47.36 N if Tommy, who has a mass of 30 kg, sits 4.0 meters from the center of a merry-go-round that is rotating for a period of 10 seconds.
What is mass?A tangible body's mass is the amount of matter it possesses. It's also a metric of inertia or the resistance to velocity when a net force is exerted.
It is given that:
Tommy, who has a mass of 30 kg, sits 4.0 meters from the center of a merry-go-round that is rotating for a period of 10 seconds.
As we know the formula for the centripetal force:
Fc = mv²/r
m = 30 kg
r = 4 meters
First, find the tangential velocity:
The formula for tangential velocity is:
v = 2πr/t
v = 2π4/10
v = 2.513 m/s
Plug the values in the formula:
Fc= 30(2.513)²/4
Fc = 47.36 N
Thus, the centripetal force acting on Tommy is 47.36 N if Tommy, who has a mass of 30 kg, sits 4.0 meters from the center of a merry-go-round that is rotating for a period of 10 seconds.
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When potassium iodide liquid is poured into lead nitrate solution (both clear solutions), a bright yellow solid, lead iodide, forms in a potassium nitrate solution. What are the signs that this is a chemical reaction? Check all that apply.
Heat is produced.
Light is produced.
Heat is absorbed.
Bubbles appear.
A precipitate forms.
The color changes.
Let's see the chemical equation
[tex]\\ \sf\longmapsto KI+Pb(NO_3)_2\longrightarrow PbI_2+KNO_3+\Delta H[/tex]
Heat is produced (Exothermic)Light is producedA precipitate forms(Yellow solid)Color changesAnswer: the person above is wrong
the correct answers are:
E
F
A precipitate forms.
The color changes.
The scientific reference for the knee cap is the Patella. true or false
Answer:
True.
Explanation:
The kneecap is scientificlaly referenced as the Patella.
a bolwing ball has a mass of 6 kilograms a tennis ball has a mass of 0.06 kilograms
To compare the magnitude of the inertia of the bowling and tennis ball, we take the ratio of their masses. Hence, the bowling ball has 100 times the inertia of the tennis ball.
Given the Parameters :
Mass of bowling ball = 6 kilogram Mass of tennis ball = 0 06 kilogramTaking the ratio of the masses :
Mass of bowling ball / Mass of tennis ballInertia = 6kg / 0.06kg
Inertia = 100
Hence, the inertia of the bowling ball is 100 times that of the tennis ball.
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What is displacement
Answer:
the moving of something from its place or position
or
he occupation by a submerged body or part of a body of a volume which would otherwise be occupied by a fluid
There are 2 different definitions.
1. The moving of something from its place or position.
2. The occupation by a submerged body or part of a body of a volume which would otherwise be occupied by a fluid.
How far did Michael Phelps swim, if he swam at a speed of 10m/s in 30 seconds?
Answer: his total speed would be 3 seconds
Explanation: because if you mulimply 10 x 3 you get 30 meaning that your answer would be 3
What distance does a police car travel if it is going 3.0 m/s for 20 seconds
Answer:
60 meters
Explanation:
If you are going 3 meters in a second, and you are traveling for 20 seconds, you have to multiply
3meters/second*20seconds
cross out the seconds and you have
3 meters*20
60 meters
Which part of the planet had the highest concentration of ozone in 1989?
Answer:
earth
sorry I need points but I don’t know the answer again I’m really sorry
define longitudinal wave
longitudinal wave, wave consisting of a periodic disturbance or vibration that takes place in the same direction as the advance of the wave. ... Sound moving through air also compresses and rarefies the gas in the direction of travel of the sound wave as they vibrate back and forth.
FORMULA
[tex]y(x,t) = y0 \: cos \: (w(t - \frac{x}{c} ))[/tex]y = displacement of the point on the traveling sound wave
x = distance the point has traveled from the wave's source
y_0 = amplitude of the oscillations
\omega = angular frequency of the wave
t = time elapsed
c = speed of the wave
An identical book is dropped on four planets of unknown gravity. The book is thrown down on planets W and X, and released from rest on planets Y and Z. The velocity is recorded for some time intervals on each planet, but not all. The missing velocities are blocked out with a gray box. Which of the following lists the planets in order from the greatest acceleration of gravity to the least acceleration of gravity?
We want to compare the gravitational acceleration of different planets by using the given table. The correct option is the last one, so we have:
Planet Y, planet W, planet Z, planet X.
First, we know that the velocity equation is written as:
V(t) = a*t + v₀
Where a is the acceleration and v₀ is the initial velocity.
With this equation, we can find the acceleration in each planet.
Planet W
The initial velocity is v₀ = -3m/s
V(t) = a*t - 3m/s
And we know that at t = 2s, the velocity is -22m/s.
v(2s) = -22m/s = a*2s - 3m/s
-22m/s + 3m/s = a*2s
-19 m/s = a*2s
(-19 m/s)/2s = a = -9.5m/s^2
Now we just do the same thing for each planet.
Planet X:
v₀ = -0.5 m/s
v(1s) = -4.2 m/s = a*1s - 0.5 m/s
-4.2 m/s + 0.5 m/s = a*1s
-3.8 m/s^2 = a
Planet Y:
v₀ = 0 m/s
v(2s) = -21 m/s = a*2s
(-21 m/s)/2s = a = -10.5 m/s^2
Planet Z:
v₀ = 0 m/s
v(1s) = -8 m/s = a*1s
(-8 m/s)/1s = a = -8m/s^2
Then the order from greatest to least is:
Y, W, Z, X
So the correct option is the last one.
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A Particular roller coaster has a mass of 3500 kg, a height of 4.0 m, and a velocity of 12 m/s. What is the kinetic energy? If needed, use g = 10. m/s^2
Answer:
=252,000j
or 252j
Explanation:
i don't think 4.0 is supposed to be there
Why doesn't a book cause a pencil to move toward it when the pencil is placed close by?
Name three other objects around you now that are displaying a balanced force
Answer:
Examples of balanced forces
Resting against a wall.
Lying down.
Aircraft in a steady-flight.
Floating in water.
Standing in ground.
Tug of war equally balanced teams.
Fruit hanging from a tree.
Ball hanging from a rope.
The forces exerted on an object are shown.
8N
ہے"
Object
If the object moves left, which statement is correct about force F?
It is equal to 8 N.
It is equal to 10 N.
It is less than 8 N.
It is greater than 10 N.
From the diagram it is clear that F is less than 8 N.
What is force?The term force is that which causes a push or a pull. A force is said to have acted on a body when the body in motion stops or an acceleration is given to a body that is at rest or the direction of the object that is in motion changes.
Having said this, we know that force is a vector quantity. This implies that force has both magnitude and direction. The direction of the force also has to do with the direction that that the force would cause the object to move.
Let us now look at the object as shown, we can see that the force that acts on the left hand side has a magnitude of about eight Newton. We are now to use this to deduce the correct statement.
We can then say from what we have in the diagram that the force F as shown to the right is less than 8 N.
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When a capacitor is charged, the electric field E, and hence the electric flux Φ, between the plates changes. This change in flux induces a magnetic field, according to Ampère's law as extended by Maxwell: ∮B⃗ ⋅dl⃗ =μ0(I+ϵ0dΦdt). You will calculate this magnetic field in the space between capacitor plates, where the electric flux changes but the conduction current I is zero. A parallel-plate capacitor of capacitance C with circular plates is charged by a constant current I. The radius a of the plates is much larger than the distance d between them, so fringing effects are negligible. Calculate B(r), the magnitude of the magnetic field inside the capacitor as a function of distance from the axis joining the center points of the circular plates. Express your answer in terms of μ0 and given quantities. B(r) =
The magnitude of the magnetic field B(r) inside the capacitor as a function of distance from the axis is [tex]\mathbf{B(r) =\dfrac{\mu_o I r}{2 \pi a^2} }[/tex]
A charged capacitor usually cause changes between the plates of electric field E and the electric flux Φ
As seen in Ampere's law which is extended by Maxwell:
[tex]\mathbf{\oint B^{\to} .dl^{\to} = \mu_o \Big( I+\dfrac{d \phi }{dt} \Big)}[/tex]
To meet the equilibrium equation of electric charge, Maxwell modified Ampere's law by incorporating the displacement current through into electric current component.
∴
The displacement current can be expressed by the relation;
[tex]\mathbf{I = \varepsilon_o \dfrac{dE}{dt} }[/tex]
From the given information, the displacement current density through area A can now be expressed as:
[tex]\mathbf{I = \varepsilon_o A \dfrac{dE}{dt} }[/tex]
Replacing the value of displacement current density into Maxwell modified Ampere Law, we have:
[tex]\mathbf{\oint B .dl= \mu_o I_{enclosed} }[/tex]
[tex]\mathbf{B \times (2 \pi r) = \mu_o I\Big (\dfrac{\pi r^2}{\pi a^2} \Big) }[/tex]
[tex]\mathbf{B(r) =\dfrac{\mu_o I r}{2 \pi a^2} }[/tex]
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Do I add squared or not?
Answer: add it
Explanation:
Some chlorine atoms have an atomic mass of 37, while others have an atomic mass of 35. What is the difference between the two types of chlorine atom?
A. The number of ions
B. The number of neutrons
C. The number of protons
D. The number of electrons
Answer:
B. the number of neutrons
Answer:
B. The number of neutrons
what is represent by number 14
Answer:
C po baka namn nakatulong
Please help me Calculate the total energy stored in the capacitor
La fórmula: P = W/t ó W = P x t. donde:
P = potencia
W = trabajo
t = tiempo
Otra fórmula de potencia es: P= I x V
Proceso de carga de un capacitor - condensador
Una fórmula muy importante que también hay que tener en cuenta es: V = q/C que indica que el voltaje es proporcional a la carga que hay en un condensador.
De la fórmula de potencia P= I x V y considerando que la corriente es constante (corriente continua), entonces la potencia es proporcional al voltaje. Si el voltaje aumenta en forma lineal, la potencia aumentará igual. Ver el siguiente diagrama.
Como la potencia varía en función del tiempo, no se puede aplicar la fórmula W = P x t, para calcular la energía transferida. Pero observando el gráfico, se ve que esta energía se puede determinar midiendo el área bajo la curva de la figura.
Energía Almacenada en un Condensador - Capacitor
El área bajo la curva es igual a la mitad de la potencia en el momento “t”, multiplicada por “t”.
Entonces: W = (P x t) / 2. Pero se sabe que P = V x I. Si se reemplaza esta última fórmula en la anterior se obtiene: W = (V x I x t) / 2, y como I x t = CV = Q, entonces para saber cuanta energía (W) hay en un condensador usamos una de las siguientes fórmulas:
W = (CV2/2) julios
W = (QV/2) julios
W = (Q2/2C) julios
, donde:
W = Trabajo (Energía) en julios
C = Capacidad en faradios
V = voltaje en voltios en los extremos del condensador
Q = carga del condensador
Answer with the given explanations below: First the given formula that looks like this is: or where:
P = power
W = work
t = time
Next with another given power formula that looks like this is:
This is the charging process of a capacitor - capacitor #1.
Then it's a very important given formula that it must also be taken into account is: which it was indicated that the voltage is proportional to the charge on a capacitor.
In the following below, from the given power formula that looks like this is: and we are considering that the current is the constant (direct current), and then the power is proportional to the voltage. If the voltage increases linearly, the power will increase the same. See the following diagram. (I'm sorry, Yhungbabe, I don't have the diagram to show you in order to refer to the total energy stored in the capacitor because I havenèt learned the energy stored in the capacitor)
Anyway, since the power varies as a function of the time, the given formula that looks like this is: cannot be applied to calculate the energy transferred. But looking at the graph, it seems that this energy can also be determined by measuring the area under the curve of the figure.
This is The Energy Stored in a Capacitor - Capacitor #2.
The area under the curve is equal to the half of the power at time "t", being multiplied by "t".
Then with the given formula below that looks like this is:
But it's known that If this is the last given formula is being replaced in the previous one, we obtain the new given formula that looks like this is: and as another new given formula that looks like this is: there's so to find out how much energy (W) that there's in a capacitor that we use in one of the new given formulas that looks like in the listed below are:
joules
joules
joules
Now finally where:
W = Work (In The Energy) in Joules
C = Capacity in the farads
V = voltage in the volts at the ends of the capacitor
Q = a capacitor charge
I apologize for the late answer and the replies, so anyway, I use the online language translator in order to translate Spanish to English for you in order to understand my work given below, so, I hope my answer with the given explanation below here is very helpful to your own question about how to calculate the total energy stored in the capacitor with the image has been provided, please mark me as Brainliest and have a great rest of the day! :D
Sincerely,
Jason Ta,
The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.
the device used to measure a masses of a body is kilogram . true or false
Answer: false
Explanation:
While kilograms are the unit used to measure body mass, the device used is a scale.
Hope it helps :)
The net force on an object moving with constant speed in circular motion is in which direction
Answer:
the net force is the same direction as the acceleration
Explanation:
so toward the center of the circle about which the object is constantly moving.
this is about the magnet fields. thanks in advance.
Does using centimeters instead of meters affect anything when calculating principle of moments?
A 4,000-kg wrecking ball is hoisted 20 m above Earth's surface. What will the wrecking ball's gravitational potential energy be?
Answer:
784,000 JExplanation:
The gravitational potential energy of a body can be found by using the formula
GPE = mgh
where
m is the mass
h is the height
g is the acceleration due to gravity which is 9.8 m/s²
From the question we have
GPE = 4000 × 9.8 × 20 = 784,000
We have the final answer as
784,000 JHope this helps you
this is a crossword puzzle so i need one word ________ boudaries from where two plates glide by each other ill give crown i cant give much points tho
Answer:
I think transform Plate?
Explanation:
The sandbox of the previous exercises had 10kg of sand. It was initially at 15°C and the specific heat of this sand is 830 j/(kg°C). What will be the final temperature of the sand? (-8100J=|0kg)
Answer:
Sorry I need points [tex] \boxed{}[/tex]
I CANT COUNT FOR MY LIFE
Answer:
Lol it was the last one
Explanation
something
Answer:
D
Explanation:
Just count the dots
See screen shot...momentum in collision
Please find attached photographs for your answer.
Hope it helps.
Do comment if you have any query.