When the chemicals in a cell get used up, then:
It stops working
It works more efficiently
It keeps on working as the chemicals have no effect on its working
Can't be said
When the chemicals in a cell get used up, it stops working as it has no more energy to drive the charges through the wire.
150 workers were engaged to finish a piece of work in a certain number of days. Four workers stopped working on the second day, four more workers stopped their work on the third day and so on. It took 8 more days to finish the work. Then the number of days in which the work was completed is
If there is no displacement then there is no work.
So when earth revolves around the sun it comes back to its position......... So will it be a work in physics