Heavy elements, such as iron and silicon have temperature as compared to light elements such as hydrogen and helium. a) lower b) equal c) higher

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.

How many neutrons does plutonium -196 with an atomic number of 78.

Which of the following list the divisions of the geologic time scale in order from longest to shortest