A snowboarder slides freely from point A to point E on a snow ramp. Assuming no air resistance or friction in the system, how will the mechanical energy of the snowboarder-Earth system change ?

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.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Acar of mass 800kg is moving at a speed of 2.2m/s.