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KIM [24]
2 years ago
7

How much work is done when a 900 N man spends 5 minutes pushing an immovable wall?​

Physics
1 answer:
mariarad [96]2 years ago
8 0

Answer: e ven though the man exerts force on the wall , the wall does not move. Work done = force applied * displacement and since the displacement of the wall is zero. , work done is also zero

Explanation:

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allochka39001 [22]

Answer:

ni = 2.04e19

Explanation:

we know that in semiconductor like intrinsic, when electron leave the band, it leave a hole in valence band so we have

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