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A tennis ball of mass m = 60.0 g and speed v = 25.0 m/s strikes a wall at a 45º angle and rebounds with the same speed at 45º. What is the impulse (magnitude and direction) given to the ball?
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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: Starting from rest, a computer disk drive is turned on and has constant angular acceleration. If it takes 0.9s for the drive to make it's second complete revolution, find the following: a) How long did it take ...
What is the ideal speed to take a 80 m radius curve banked at a 30.0° angle?
Question: You're driving down the highway late one night at 16 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s, and the maximum deceleration of your ca ...
Question: In this problem you will estimate the heat lost by a typical house, assuming that the temperature inside is Tin=20^C and the temperature outside is Tout=0^C. The walls and uppermost ceiling of a typical house a ...
Question: Suppose you have a block resting on a horizontal smooth surface. the block (mass m) is attached to a horizontak spring (spring constant k) which is fixed at one end. the mass is pulled to one side and released. ...
Question: A rectangular wooden block of weight W floats with exactly one-half of its volume below the waterline. The wooden block is removed from the water bath and placed in an unknown liquid. In this liquid, only one-t ...
Question: A ring of radius R has total charge Q. A) At what distance along the z-axis is the electric field strength a maximum? Express your answer in terms of R. B) What is the electric field strength at this point? Exp ...
Question 1: Rob was supposed to spend his two-week school work experience at his local auto-repair shop. Unfortunately, his time on the job only lasted two days. On day two, Rob was asked to get the 1-liter air tool oil ...
Question: To take off from the ground, an airplane must reach a sufficiently high speed. The velocity required for the takeoff, the takeoff velocity, depends on several factors, including the weight of the aircraft and t ...
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