please answer both 1)The energy produced by a 83 W bulb is harnessed and used to...

please answer both

1)The energy produced by a 83 W bulb is harnessed and used to lift a 32.5 kg weight. If there are no frictional losses and the bulb runs for 1,633 seconds, how high will the weight rise, in m?

2)A ball of mass 1.56 kg is released from rest at height 7.13 mabove the floor. It falls, hits the ground, and rebounds to height 4.12 m above the floor. Assume none of the losses are due to air friction. Find the work done against friction, in J, on the ball during the contact with the ground.

HINT: This is a positive number!

Expert Solution

genius_generous answered 2 years ago

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