Richard Carapaz tops the crest of the Col de la Bonette 2800 m high hill moving at a speed of 1m/s. Ignoring friction, what is the speed of the Richie at the bottom of the hill?

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?