Question

Neglecting heat transfer by convection, 'what is the expression for the time require cool the sphere to some temperature t ?

Answer 1

Convection is the process of losing heat through the movement of air or water molecules across the skin. the use of a fan to cool of the body is an example of convection. the amount of heat loss fromconversion is dependent upon the air flow or in aquatic exercise , the water flow over the skin .