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givi [52]
3 years ago
12

SC.912.P.12.10

Physics
1 answer:
Korolek [52]3 years ago
8 0

Answer:

D

Explanation:

You can see the 1st Law thermodynamatic, that energy flow of thermo source.

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Describe a scenario when you could use energy but not do any work.
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Answer:

When you don't move, you still use energy. This energy is called potential energy, or, stored energy.

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4 0
3 years ago
A 60cm long string of an ordinary guitar is tuned to produce the note a4 (frequency 440hz) when vibrating in its fundamental mod
pishuonlain [190]

Answer:

0.78 m

Explanation:

The relationship between wavelength and frequency of a wave is given by

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For the sound wave in this problem, we have

f=440 Hz is the frequency

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\lambda=\frac{v}{f}=\frac{344 m/s}{440 Hz}=0.78 m

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