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Nostrana [21]
3 years ago
5

Sound wave A has a lower frequency than sound wave B, but both waves

Physics
2 answers:
Keith_Richards [23]3 years ago
4 0

Answer: C

Explanation: Amplitude controls loudness, and frequency controls pitch. The more frequent the higher pitch.

tatuchka [14]3 years ago
3 0

Answer: C

explanation: its the only one that makes sense to me

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A power plant produces 1000 MW to suply a city 40Km away.Current flows from the power plant on a single wire of resistance0.050
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Answer:

The current in wire resistance 2Ω

a). 8696 A

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Explanation:

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a).

P=V*I\\I=\frac{P}{V}=\frac{1000x10^{6}W}{115x10^{3}k }  =8696.65A

Using law ohm

b).

V=I*R\\I=\frac{V}{R}

P=I*I*R\\P=I^{2} *R\\P=8696.65^{2}*2\\P=151.228 x10^{6}  W

e=\frac{151.228x10^{6} }{1000x10^{6} }*100= 15.12%

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3 years ago
Can someone help quickly please and thank you
Sergio039 [100]

Answer:

I think D??

Explanation:

8 0
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in a cricket match there are 5000 spectators counted 10 by 10 the number of significant figure in the measurement will be
BabaBlast [244]

Answer:

\boxed{3 \ Significant \ figures}

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It would be A) shared
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