An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. the bumper behaves like a spring with constant 5.75 ✕ 10^6 n/m and is compressed 3.12 cm as the car is brought to rest. what was the speed of the car before impact, assuming no energy is lost in the collision with the wall?
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How many atoms of nitrogen are in the chemical formula ni(w on
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Asmall grinding wheel has a moment of inertia of 4.0×10−5 kg⋅m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?
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Compare the patterns of the two waves shown in the image. which statement is true about these waves?
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An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. the bumper beh...
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