Physics
Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from

northeast
west
southeast
east

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Physics
The mass defect is the result of what action occurring?

Mass being converted to energy when protons and neutrons break apart in a nucleus
Energy being converted into moles of atoms when neutrons break apart protons
Protons and electrons being attracted to each other
Mass being converted to energy when protons and neutrons bind together in a nucleus

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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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