When a driver presses the brake pedal, his car can stop with an acceleration of -5.4m/s^2. how far will the car travel while coming to a complete stop if its initial speed was 25 m/s?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

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.

The softest and hardest minerals are: softest hardest