Use conservation of energy to find the speed
3.0 kg block is attached to a string that is wrapped around a 2.0 kg, 4cm-diameter hollow cylinder that is free to rotate. the block is released 1.0 m above ground. Use conservation of energy to find the speed of the block as it hits the ground.
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A 5.80 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.63 T pointing up. During the course of 0.15 s, the field is changed to one of 0.25 T pointing down. What is the average induced emf in t
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How were industrial workers affected by immigrants in the late 19th century?
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