An ice cube is placed in a microwave oven.

Suppose the oven delivers 125 W of power to the ice cube and that it takes 33200 J to melt it.

How long does it take for the ice cube to melt?

It takes 266 seconds to melt the ice.

Explanation:

Given data

Power of the microwave oven (P) : 125 Watt Heat supplied to the ice (Q) : 33,200 Joule Time for the melting (t) : to be determined

In order to determine the time required to melt the ice, we can use the following expression.

P = Q/t

t = Q / P = 33,200 J / 125 W = 266 s

It takes 266 seconds to melt the ice.