Two tuning forks X and Y have different frequencies and produce an 8 Hz beat frequency when sounded together. When X is sounded along with a 392 Hz tone, a 3 Hz beat frequency is detected. When Y is sounded along with the 392 Hz tone, a 5 Hz beat frequency is heard. What are the frequencies fX and fY when (a) fX is greater than fY and (b) fX is less than fY

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.

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

What is the measurement of how fast an object moves relative to a reference point?