Question
Name the two cells which can change their shape?
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A stone and the earth attract each other with an equal and opposite force. Why then we see only the stone falling towards the earth but not the earth rising towards the stone?
A worker lives at a distance of 1.32km from the factory. If the speed of sound in air be 330m/s, how much time will the sound of factory siren take to reach the worker?
Give the scientific name of the following: