510 Answered Questions for the topic AP physics

01/05/16

AP Physics (rotational motion question)
The drum shown in the figure has a radius of .4 meters and a moment of inertia of 2.3 kgm^2 about an axis perpendicular to it through its center. The frictional torque at the drum axle is 3 Nm. A... more
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Ap Physics Physics

01/04/16

physics homework problem on impulse
A punter drops a ball from rest vertically 1 meter down onto his foot. The ball leaves the foot with a speed of 18 m/s at an angle 55º above the horizontal. What is the impulse delivered by the... more
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Ap Physics

12/28/15

with an initial speed of 8.0 m/s at an angle of 40 degrees above the horizontal. The ball leaves her hand 1.0 meters above the ground. See full question below.
A child throws a ball with an initial speed of 8.0 m/s at an angle of 40 degrees above the horizontal. The ball leaves her hand 1.0 meters above the ground. At what angle below the horizontal does... more
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Ap Physics Physics Science

11/20/15

how many moles of gas?
A gas with an initial temperature of 790 °C undergoes an isobaric process . Final temp = 81.3 CA) How many moles of gas are there?   Hint:You must use Pascal for pressure and cubic meters for... more
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Ap Physics

09/20/15

At what time do they collide in terms of D, Vo, and a
At a certain instant in time a toy car is traveling at a constant speed of Vo to the right while a distance D ahead is another toy car starting from rest and traveling to the left with constant... more
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Ap Physics

09/18/15

a steel ball is dropped onto a hard floor from a height of 1.30 m and rebounds to a height of 1.25 m. calculate its velocity just before it strikes the floor
a steel ball is dropped onto a hard floor from a height of 1.30 m and rebounds to a height of 1.25 m. calculate its velocity just before it strikes the floor
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05/19/15

Three high school physics problems please help!
1. The Milky Way contains a supermassive black hole with mass of 4 million times the Sun(!). a. If the black hole is 2.4x10^20 away from Earth, calculate the gravitational force between the black... more
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Ap Physics

11/17/14

A rocket skateboard of mass 3.00 kg has an initial velocity of (5.00, 2.50) m/s. A net force of (3.40, 2.67) N is applied to it for 10.0 s. what's the velocity?
Its asking for the velocity at the end of the time but i have never encountered two velocities and forces together inside parantheses
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10/22/14

How long does the pinball sit in its area?
A pinball is moving through a pinball machine at 1 m/s and hits an accelerator. When it leaves the accelerator, it is traveling at 2 m/s over the distance of 2.7 cm. How long is the pinball in the... more
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Ap Physics

04/07/14

An object moves with a constant acceleration of 5 m/s squared which of the following statements is true
A. Just velocity stays the same b. it moves 5 m each second c. Objects velocity changes 5 m/s each Second
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