Laurel, wearing a parachute, falls straight down at a constant speed of 2 m/s. He passes Hardy, who is standing on a high cliff. When Laurel is 15 m below him, Hardy throws a lunch box straight down after Laurel, giving it an initial downward speed of 2 m/s. How long does it take until lunch catches up with Laurel

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.

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

Which accounts for an increase in the temperature of a gas that is kept a constant volume