At 15° C, air reaches saturation when it contains 10 g of water vapor per 1 kg of air. What is the relative humidity of air at 15°C that contains 7g of water vapor per 1 kg of air?

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

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 coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.