Our sun and the planet earth have what type of force acting between them?
distance force
contact force
strong force
weak force

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

How many times did thomas edison mess up the light bulb

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.