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A 10cm-long thin glass rod is uniformly charged to +50 nC. A small plastic bead, charged to - 4.7 nC, is 4.5 cm from the center of the rod. What is the magnitude of the force on the bead?
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Question: A projectile is launched from ground level to the top of a cliff which is 195 m away and 135 m high. If the projectile lands on top of the cliff 4.7 s after it is fired, find the initial velocity of the project ...
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