Answer:
Heat
Explanation:
Energy that is transferred from a warmer object to a cooler object is called heat.
Coal plants use a boiler to produce steam.
Answer:
In physics and mechanics, torque is the rotational equivalent of linear force. It is also referred to as the moment, moment of force, rotational force or turning effect, depending on the field of study. The concept originated with the studies by Archimedes of the usage of levers
Answer:
Yes the valency of oxygen is 2
