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stellarik [79]
3 years ago
10

We can see our face clearly on mirror why cant we see our face clear on aluminium or irion plate

Physics
1 answer:
Alexxandr [17]3 years ago
3 0

Explanation:

this is due to the roughness of the metal like you mentioned aluminum and iron are rough and don't provide a reflective surface as good as a mirror

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PE = -\frac{Gm^2}{R}

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PART A) As half its initial value is u'=2u, then

U = -\frac{2Gm^2}{R}

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dKE = -dU

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\frac{1}{2}mv^2 =\frac{Gm^2}{2R}

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