The frequency of an X ray is 7.4x10^18 Hz. What is the X ray's wavelength?(Hint even though it isn't listed you should know the speed that X rays travel at)

What is the final velocity of the initial velocity of 25 and -50?

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

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.