Physics
What should a person on a freely rotating turn table do to decrease his (angular) speed ?

Sit down with raised hands
Bring his hands together
Spread his hands outwards
Raise his hands up

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Physics
We always see the same face of the moon, because

It takes equal time for revolution around the earth and rotation on its own axis
It rotates at the same speed as the earth around the sun
It revolves on its axis in adirection opposite to that ofthe earth
It is smaller than the earth

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Physics
When a pail of water is swung in a vertical circle, the water does not fall out at the top of the loop when the speed is

Below a certain minimum value irrespective of amount of water in the pail
Above a certain minimum value depending on amount of water in the pail
Below a certain minimum value depending on amount of water in the pail
Above a certain minimum value irrespective of amount of water in the pail

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