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A ball on the end of a string is revolved at a uniform rate in a vertical circle with a radius of .72 meters. If its speed is 4m/s and its mass is .3kg calculate the tension of the in the string when the ball is at the top of the path and at the bottom of the path. what is the accleration of the ball?
A planet moves in an elliptical orbit around the sun. The mass of the sun is Ms. The minimum and maximum distances of the planet from the sun are R1 and R2, in that order.
A 5.7kg box is on a frictionless 44° slope and is connected via a massless string over a massless, find the tension in the string once the box begins to move
The free end of the copper rod is maintained at water"s boiling point, and the free end of the brass rod is maintained at water"s freezing point.
a 406.0 kg copper bar is put into a smelter for melting. the initial temperature of the copper is 300.0 k. how much
Photographic cameras on spy satellites supposedly can read the license plate of a car on the ground. How large is the diameter of the camera required for such a feat
A current of 3.0 A is flowing through a 40 cm long solenoid with 500 turns. What is the radius of the circular path of the proton inside the solenoid
A 2.83-kg object is thrown vertically upward from the surface of Mars, where the acceleration due to gravity is g1 = 3.71 m/s2. The initial velocity is v1, and the object reaches a maximum height of y1.
A woman finds the front windshield of her car covered with iceat -13.8°C. How much heat is required to meltthe ice
A stand fan has a circular base of radius 0.2 meter and mass of 2.3 kilogram. Find the pressure exerted by the fan on the floor
A 61 kg skater and a 77 kg skater stand at rest on frictionless ice. They push off, and the 61 kg skater moves at 1.9 m/s in the + x-direction. What's the other's velocity? (Express your answer to two significant figures and include the appropriate u..
A 0.5 kg lump of clay is moving at 2 m/s in the +x direction of some arbitrarily chosen coordinate system. What is the velocity of the pair after the collision
Baseball player A bunts the ball by hitting it in such a way that it acquires an initial velocity of 1.9 m/s parallel to the ground. What is the magnitude of the initial velocity
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