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IRISSAK [1]
3 years ago
14

Apparent brightness depends on which two properties?i’ll give brainlist?:)

Physics
2 answers:
Norma-Jean [14]3 years ago
8 0

Answer:

D

Explanation:

I just did it on a p e x

Eddi Din [679]3 years ago
6 0

Answer:

D

Explanation:

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The solid right-circular cylinder of mass 500 kg is set into torque-free motion with its symmetry axis initially aligned with th
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30.95°

Explanation:

We need to define the moment of inertia of cylinder but in terms of mass, that equation say,

A=\frac{1}{12}m(3r^2+l^2)

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A=\frac{1}{12}(500)(3(0.5)^2+(2)^2)A=197.9kg.m^2

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Finally we need to find the required angle between the fixed line a-a (I attached an image )

\Phi = 2tan^{-1}\sqrt{\frac{(\frac{A}{cos\gamma})^2-A^2}{c^2}}

Replacing the values that we have,

\Phi = 2tan^{-1}\sqrt{\frac{(\frac{197.9}{cos5\°})^2-197.9^2}{62.5^2}}

\Phi = 2tan^{-1}(\sqrt{0.076634})

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\Phi = 30.95\°

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