Amotor expends a given amount of energy in a certain period of time. if twice the energy is expended in half the time, its power is:

Energy per unit of time is known as power

so here let say initial power is P in which energy E expended in time interval t

so we can say

now energy expended is double while it took half time

so new power expended will be

so here we can say that now the power expended will be 4 times the initial power

Refrigerating ,disinfecting(washing the friut or vegtable off before cooking or storing) drying