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krok68 [10]
3 years ago
15

superman is flying 54.5 m/s when he sees a train about to fall into a river 850 m away . he must reach the train in 4.22 s

Physics
1 answer:
IRISSAK [1]3 years ago
8 0

Answer:

What is the question?

Explanation:

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Two Polaroids are aligned so that the initially unpolarized light passing through them is a maximum. At what angle should one of
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To solve this problem it is necessary to apply the law of Malus which describes the change in the Intensity of Light when it crosses a polarized surface.

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I = I_0 cos^2\theta

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Since it is sought to reduce the intensity by half the relationship between the two intensities will be given as

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Using the Malus Law we have,

I = I_0 cos^2\theta

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Explanation:

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