If load distance is 15cm and effort distance is 30 cm then find the workdone by load​

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

Which type of basaltic lava flow has a fairly smooth

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.