Created by StemPy LabA ball is dropped from a height of onto a hard floor. The coefficient of restitution between the ball and the floor is , so after each bounce the ball rises with half the speed it hit the floor with. Ignoring air resistance, the total distance the ball travels before it comes to rest, in metres, is ____.
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← A block of mass 2 kg rests on a smooth horizontal table, attached to a wall by a light spring of force constant 200 N/m. It is pulled 5 cm from its rest position and let go. The largest acceleration of the block during the motion, in m/s², is ____.A transformer connected to the 220 V mains supplies 11 V to a lamp that uses 44 W. The efficiency of the transformer is 80%. The current drawn from the mains, in milliamperes, is ____. →
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