Physics
Blowing Air with open pipe is an example of :

Adiabatic process
Isobaric process
Isochroric process
Isothermal process

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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 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.
It is narrow band of high-velocity wind.
Jet streams are typically continuous over long distances.

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