PLEASE HELP ill also answer questions that you have posted if you answer these correctly (40pts)

friction make non moving objects starts to move

there are different types of force which may help them to move

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Explanation:

true is the answers for the question of

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

wavelength divides in half and speed stays the same.