Physics
When a card placed over a tumbler is flicked with the finger, the coin placed over it falls in the tumbler.

Law of conservation of energy
Law of Inertia
Newton's third law of motion
Law of conservation of momentum

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Physics
Which one of the following statements with regard to Jet stream, an upper level tropospheric wave, is not correct?

It is narrow band of high-velocity wind.
It follows the wave path near the tropopause at elevations of 8 km to 15 km.
In summer, the polar front jet achieves its maximum force.
Jet streams are typically continuous over long distances.

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