3 years ago

Sierra did 500 J of work to move her couch. If she exerts 250 N of force on the couch, how far did she move it?

Physics

1 answer:

olya-2409 [2.1K]3 years ago

5 0

Answer:

2 m

Explanation:

Work = force × distance

500 J = 250 N × d

d = 2 m

She moved the couch 2 meters.

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5831J

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3 years ago

a violinist plays a note with a wavelength of 0.77955 m. if the speed of the sound is 343 m/s, what pitch is this note?

prisoha [69]

Answer: The pitch of the note is: 439.99 Hz

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Since,

v = fλ

Therefore,
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Plug-in the values:

</span> $f = \frac{343}{0.77955}$
<span>
f = 439.99 Hz(pitch)</span>

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3 years ago