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A student moves a box with mass of 35.0 kilogram up a ramp inclined at 12o with the horizontal. If the box starts from rest at the bottom of the ramp and is pulled at an angle of 25.0o with respect to the incline and with 185 Newton of force, find the acceleration up the ramp? Suppose that the coefficient of kinetic friction is 0.27.
two large parallel conducting plates each having an area of 2.00 m2 are 6.25 mm apart and have charges of equal
A 5 oz baseball is thrown in the air so that when it is at its highest point, it is traveling sideways at 50.0 ft/sec. what will be the speed of the baseball when it drops back down to the level of the field
A ball is thrown upward from the top of a building at an angle of 30.0° to the horizontal and with an initial speed of21.0m/s. Find the horizontal range of the ball
A helicopter lifts a 72 kg astronaut 19 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/12. How much work is done on the astronaut
You want to construct a simple pendulum with a period of 2 seconds. what would be the new period of your pendulum
Two loudspeakers on a concert stage are vibrating in phase. A listener is 57.5 m from the left speaker and 28.5 m from the right one. The listener can respond to all frequencies from 20 to 20 000 Hz, and the speed of sound is 343 m/s. What are the tw..
The angular speed of a rotating disk is 0.75 rad/s. What is the frequency of the rotation
Two people carry a heavy electric motor by placing it on a light board 2.00 m long. One person lifts at one end with a force of 100 N, and the other lifts the opposite end with a force of 900 N.
you camera lens has alens of 35mm focal length and film that is 36mm wide. how far are you from the airplane
A 2.0-kg solid cylinder of radius 0.5 m rotates at a rate of 40 rad/s about its cylindrical axis. What power is required to bring the cylinder to rest in 10 s
One end of a nylon rope is tied to a stationary support at the top of a vertical mine shaft of depth 83.0 m. What is the wave speed at the top of the rope
A 20 kg satellite has a circular orbit with a period of2.4 h and a radius of 8.0 × 106m around a planet of unknown mass. what is the radius of the planet
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