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

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Physics
Kinetic energy depends on

The pressure of the moving body
The velocity or speed of the moving body.
The mass of the moving body
Both mass and velocity of the moving body

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