A rod “X”, has a positive charge of 5. An otherwise identical rod, “Y”, has a negative charge of 12. The rods are touched together and then separated. a) When they touched, what particles moved between them?
b) Did the particles move from “X” to “Y” or from “Y” to “X”.

An equinox occurs when a. neither end of earth's axis is tilted toward or away from the sun. b. the north end of earth's axis is tilted away from the sun. c. the north end of earth's axis is tilted toward the sun. d. earth's axis is parallel to the sun's rays. select the best answer from the choices provided a b c d

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.

If a balloon is taken outside on a very cold day, what will occur?