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The block of ice weighs 500 newtons.
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All of the ramps are 5 meters high. From conservation of energy, we know that the KE of the block at the bottom of the ramp will be equal to the loss of PE. Find the speed of the block at ground level in each case.
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The KE and PE of a block freely sliding down a ramp are shown in only one place in the sketch. Fill in the missing values.
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A big metal bead slides due to gravity along an upright friction-free wire. It starts from rest at the top of the wire as shown in the sketch. How fast is it traveling as it passes:
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Rows of wind-powered generators are used in various windy locations to generate electric power.