When you peel some sticky tape from a roll it often tries to go back on again. Explain, as fully as you can, why it does this.

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.

If you let go of the notebook after lifting it, will it move? how?

Define the terms moral development and moral reasoning