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A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4 m down a q = 25° incline. The sphere has a mass M = 4 kg and a radius R = 0.28 m. What is the translationg kinetic energy
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What is the (magnitude of the) velocity of a rollercoaster at the bottom of a track that is 89.8 m high if it starts from rest? (Use the value g = 9.8 m/s2 for the acceleration of gravity.) Please provide work to explain
Question: At what speed does a ball hit the ground if you toss a 120 g ball straight up to just touch the 12-m-high roof of the gymnasium if you release the ball 1.5 m above the ground? Solve this problem using energy. T ...
Question: The radius of the earth's orbit around the sun (assumed to be circular) is 1.5*10^8 km , and the earth travels around this orbit in 365 days. a) What is the magnitude of the orbital velocity of the earth in m/s ...
Question: A student standing in a canyon yells "echo," and her voice produces a sound wave of frequency of f = 0.56 kHz. The echo takes t = 3.5s to return to the student. Assume the speed of sound through the atmosphere ...
Question: A simple pendulum oscillates with frequency f. (a) What is its frequency if the entire pendulum accelerates at 3/4g upward? (b) What is its frequency if accelerates at 0.75g downward? The response must be typed ...
PART A: Find Leslie's average speed when she runs to the store 14 km away in 24 min Express your answer to two significant figures and include the appropriate units. PART B: How fast is this in m/s? Express your answer t ...
Question: A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 0.0060 m/s2 less than that at sea level (gsealevel = 9.83 m/s2). Part A: What is the observatory's altitude? Assume Rear ...
Question: Part A: Which of the following gives the correct permitted values of ml for l=2? Part B: A second important result is that electrons will fill the lowest energy states available. This would seem to indicate tha ...
Question: A textbook of mass 2.09kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.120m , to a hanging book with mass 2.96kg . The system is released fro ...
Problem: Suppose a point charge produces a potential of -1.8 V at a distance of 1.1 mm. What is the charge, in coulumbs, of the point charge? The response must be typed, single spaced, must be in times new roman font (si ...
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