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kakasveta [241]

3 years ago

8

7. A stereo is able to convert 20% of its electrical energy into sound. If 1000 J of sound energy is produced, calculate the ele

ctrical energy used [Show all work].
8. A vehicle is only 18% efficient. How was the other 82% of the energy lost?

1 answer:

Sonja [21]3 years ago

3 0

Answer:

As 20/100 E= 1000

E= 10,000/2

=5000J

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