Which of the following statements correctly represents the relationships between molecular motion and pressure? a. The greater the molecular motion, the less pressure the molecules exert

b. The greater the molecular motion the greater the pressure the molecules exert

c. Molecular motion is not related to the pressure the molecules exert

d. None of the above

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.

Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.

What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr