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Question: A ball of mass m = 1.80 kg is released from rest at a height h = 65.0 cm above a light vertical spring of force constant k as in Figure P5.66a. The ball strikes the top of the spring and compresses it a distance d 59.00 cm.
As in Figure P5.66b. Neglecting any energy losses during the collision, find (a) the speed of the ball just as it touches the spring and (b) the force constant of the spring.
The weight in the figure below hangs from a long board of negligible weight. (Let θ = 63.0o and W = 480 N.) Find the magnitude of the tension T in the horizontal rope.
Two large parallel plates are separated by 0.90cm and carry uniform charge densities equal in magnitude and opposite in sign. A proton is between the plates and has an acceleration of magnitude 1.40×10^11m/s^2.
a car with a mass of 1060 kg starts from rest and accelerates toa speed of 10.7 m/s in 15.8 seconds, what is the average power developed by the car's engine
You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 297 N for 7.4 s, what is the total work (by all forces) done on the refrigerator
A rectangular coil with 18 windings carries a current of 2 mA flowing in the counterclockwise direction. What torque must be applied to the loop to hold it steady
After you pick up a spare, your bowling ball rolls withoutslipping back toward teh ball rack with a linear speed of v = 3.36m/s. What is the linear speed of the ball
A fish appears to be 2.00 m below the surface of a pond when viewed almost directly above by a fisherman. What is the actual depth of the fish
A railroad car of mass 2.3 104 kg moving at 2.50 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
An iron tower in is 304 meters tall on a cold day (T = -9 degrees Celsius). What is its height of the tower on a hot day when the temperature is 34.6degrees Celsius
You are now studying a length of wire that has been coiled up to create a circular coil of 4 turns all arranged compactly, The loop has radius of 0.0240 m and a current of 49.5 A, What is the strength of the magnetic field at the center of the loop
You have a large triangular prism made of silica (ns = 1.45) resting on a table. The internal angles of the triangle are 90 degree and 45 degree. You also have a laser beam (wavelength = 633 nm) set up parallel to the tabletop. How would you point..
question1if a race car completes a mi oval track in s what is its average speed? did the car accelerate? i know what an
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