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natka813 [3]
3 years ago
9

A pulley system is such that a person pulls down with 10 N of force to lift a 20 N object. The

Physics
1 answer:
madam [21]3 years ago
4 0
Holaaa, qué tal, cómo estás?
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Two harmonic sound waves reach an overseveer simulatenouslt. the obsever hears the sound intensity rise and fall with a time of
irakobra [83]

Answer:

dF=2.5Hz

Explanation:

From the question we are told that:

Time T=0.2sec

Generally the Period is given as

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Most binary systems with an invisible companion contain a large, bright star and a small, dim star hidden by the light of its la
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