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A rock is kicked off the edge of a cliff 45.0m high with an initial velocity of 10.0m/s in the horizontal direction. How much time doe it take to hit the ground below? How far from the bottom edge of the cliff does it land?
A Ferris wheel is moving at an initial angular velocity of 1.0 rev/37 s. If the operator then brings it to a stop in 3.2 min, what is the angular acceleration of the Ferris wheel
Bats use the Doppler effect as a directional guide and to detect insects. Find the frequency of the sound detected by the bat
A man can row a boat at a speed of 7.45 km/h in still water. If he is crossing a river where the current is 2.00 km/h, find what direction should his boat be headed
A parallel plate capacitor has a capacitance of 8.0 µF when filled with a dielectric. estimate the dielectric constant of the dielectric
What is the value of h0? If the block were released from height 3h0 above the spring, Evaluate the maximum compression of the spring?
A car moves along the x-axis in the positive direction. Find the sign (+,-) of the velocity and acceleration of the car for each situation: 1. The car moves AWAY from the origin and gets FASTER 2.
The plane of a 6.0 cm × 8.0 cm rectangular loop of wire is parallel to a 0.16-T magnetic field. The loop carries a current of 6.8 A. What is the magnetic moment of the loop
An object in simple harmonic motion has an amplitude of 0.377 m and an oscillation period of 0.620 s. Determine the maximum speed of the motion
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of 9 grams of argon is raised by 75 K under conditions of constant pressure. Assuming that argon is an ideal gas, evaluate how much heat is required? J
A 380kg piano slides 3.2m down a 27â degrees incline and is kept from accelerating by a man who is pushing back on it parallel to the incline, What is the force exerted by the man
The force required to stretch a Hooke's-law spring varies from 0 N to 76.4 N as we stretch the spring by moving one end 14.6 cm from its unstressed position. Find the work done in stretching the spring
A cord is used to vertically lower an initially stationary block of mass M = 40 kg at a constant downward acceleration of g/3. Find the work done by the cord's force on the block
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