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VashaNatasha [74]
3 years ago
8

PHYSICS!

Physics
1 answer:
Allushta [10]3 years ago
6 0

Answer:

Friction is useful in some cases like walking and cycling ..

but it is unwanted in machines as it create unwanted sounds and heat .,due to which we loss energy

Explanation:

mark me as brainliest ❤️

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luda_lava [24]
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The work W done by the electric field in moving the proton is equal to the difference in electric potential energy of the proton between its initial location and its final location, therefore:
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Hmm

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I don't know sorry forgive me.

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