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 WattHeat supplied to the ice (Q): 33,200 JouleTime 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.

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

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