What continent is located at 40 degrees north and 100 degrees west?

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Describe uniform velocity and variable velocity in short

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.