Which of the following processes show no work done?

a refrigerator used to freeze water

a tire being inflated with an air pump

water getting boiled in a pressure cooker

an automobile engine operating for several minutes

Water getting boiled in a pressure cooker

An automobile engine operating for several minutes

Explanation:

In a refrigerator the compressor does some work for water to get freezed it compresses gas.

Like the compressor in the refrigerator is the pump that inflates tire it does work by compressing air.

Meanwhile both pressure cook and a streaming car engine does no work since they remain stationary

The measure of energy expended in moving an object, No work is done if the object does not move.

Work is done when a force that is applied to an object moves that object. The work is calculated by multiplying the force by the amount of movement of an object

(W = F * d).

answer is slate

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