Why the cell stops working after some time?

Why does the electric fan continue to rotate for some time after the current is switched off ?

When stirred with a spoon and left, water comes to rest after some time. It occurs due to

Assertion: A ball is released on a rough ground in the condition shown in figure. it will start pure rolling after some time towards left side. Reason: Friction will convert the pure rotational motion of the ball into pure rolling

An athlete does not come to rest immedietly after crossing the winning line due to the

A boggy of uniformly moving train is suddenly detached from train and stops after covering some distance. The distance covered by the boggy and distance covered by the train in the same time has relation

Why electrochemical cell stops working after some time?

Feeling of fatigue after running fast for some time is due to

Why does a ball roll for a long time on a smooth surface than on a rough surface?

Why does cement set to a very hard mass when mixed with water and allowed to stand for some time?