Answer:
Convective heat transfer is the transfer of heat between two bodies by currents of moving gas or fluid. In free convection, air or water moves away from the heated body as the warm air or water rises and is replaced by a cooler parcel of air or water.
Explanation:
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Both of them are substances which comes between the path of electricity but the difference is that one let the electricity to pass that is conductor and other acts as breaker in the connection which is a insulator.
Answer:
mixtures that appear to be the same throughout are homogenous mixtures
A simple pulley ... one with only a single fixed wheel ... only changes the direction of a force.
