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elena-s [515]
3 years ago
15

A 60 Watt light bulb runs for 120 seconds. How much energy does it use?

Physics
1 answer:
sattari [20]3 years ago
6 0
ENERGY = POWER X TIME
=60 X 120=7200KWh
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Answer:

Block A will have a final charge of 3.5nC.

Explanation:

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A tube 1.20 m long is closed at one end. A stretched wire is placed near the open end. The wire is 0.350 m long and has a mass o
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71.4583 Hz

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The fundamental frequency of the tube (closed at one end) is given by

f=\frac{v}{4L}\\\Rightarrow f=\frac{343}{4\times 1.2}\\\Rightarrow f=71.4583\ Hz

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\mu=\frac{m}{l}\\\Rightarrow \mu=\frac{9.5\times 10^{-3}}{0.35}\\\Rightarrow \mu=0.02714\ kg/m

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