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An impulse of 149 Ns is required to stop a person's head in a car collision. If the face is in contact with the steering wheel for 0.0152 s, what is the average force on the cheekbone? Answer in units of N
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Question: One day when you come into physics lab you find several plastic hemispheres floating like boats in a tank of fresh water. Each lab group is challenged to determine the heaviest rock that can be placed in the bo ...
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Question: Standing waves on a wire are described by y(x,t)=(ASWsinkx)sin?t, with ASW = 3.00mm , ? = 975rad/s , and k = 0.790?rad/m . The left end of the wire is at x = 0. Part A: At what distances from the left end are t ...
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Question: A slingshot will shoot a 10-g pebble 22.0 m straight up. Part A: How much potential energy is stored in the slingshot's rubber band? Express your answer using two significant figures. Part B: With the same pote ...
Consider the following examples, which involve energy being transformed from one kind to another. Identify the initial input & final output forms of the energy in each case. Identifying intermediate energy conversions ma ...
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Question: An object of mass m is traveling on a horizontal surface. There is a coefficient of kinetic friction µ between the object and the surface. The object has speed v when it reaches x=0 and encounters a spring. Th ...
Question: The pressure at the top of the water in a city's gravity-fed reservoir is 1.0 x 105N/m2. Part A: Determine the pressure at the faucet of a home 39 m below the reservoir. Express your answer to two significant f ...
After examining a cube-shaped object, explain, based on your observations, why Earth is not shaped like a cube? Describe 4 reasons with evidence to support each one.
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