1.What will happen if we keep a spherical object at the centre of a spinning plate?Explain.
2.What will happen if we keep our finger at the centre of a spinning plate?Explain.
3.What will happen if we stand at the centre of a merry-go-round?Explain.
4.Why doesn’t the centrifugal and centripetal force balance each other?
5.The hydroelectricity generated at a dam may be considered a modified form of solar energy.Explain.
6.What is the advantage of dopping semi-conductors?
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