, 30.01.2020janalynmae

Tension force the force exerted by the pen on string

D

Explanation:

because it is at rest

note:

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The virus that causes COVID-19 is mainly transmitted through droplets generated when an infected person coughs, sneezes, or exhales. These droplets are too heavy to hang in the air, and quickly fall on floors or surfaces.

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D

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No, tension force is the force coming from the string that keeps the pen not to fall.

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