(a) In air at 0Ā°C, a 1.60-kg copper block at 0Ā°C is set sliding at 2.50 m/s over a sheet of ice at 0Ā°C. Friction brings the block to rest. Find the mass of the ice that melts.
(b) As the block slows down, identify its energy input Q, its change in internal energy , and the change in mechanical energy for the blockāice system.
(c) For the ice as a system, identify its energy input Q and its change in internal energy.
(d) A 1.60-kg block of ice at 0Ā°C is set sliding at 2.50 m/s over a sheet of copper at 0Ā°C. Friction brings the block to rest. Find the mass of the ice that melts.
(e) Evaluate Q and for the block of ice as a system and for the blockāice system.
(f) Evaluate Q and for the metal sheet as a system.
(g) A thin, 1.60-kg slab of copper at 20Ā°C is set sliding at 2.50 m/s over an identical stationary slab at the same temperature. Friction quickly stops the motion. Assuming no energy is transferred to the environment by heat, find the change in temperature of both objects.
(h) Evaluate Q and for the sliding slab and for the two-slab system.
(i) Evaluate Q and for the stationary slab.