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nikitadnepr [17]
3 years ago
9

Soils, forests, and minerals are among earth’s _____ resources.

Physics
2 answers:
ddd [48]3 years ago
8 0

Soils, forests, and minerals are among Earth’s _____ resources.

LAND Resources! this was the correct answer for me

stich3 [128]3 years ago
7 0
Soils, forests and minerals are among earth's "Natural Resources".
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The graph appears to be in error.

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M84, M87, and NGC 4258 all have accretion disks around their central black holes for which the rotational velocities have been m
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Answer:

<u>For M84:</u>

M = 590.7 * 10³⁶ kg

<u>For M87:</u>

M = 2307.46 * 10³⁶ kg

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v = \sqrt{\frac{GM}{r} }

making m the subject of the formula in the equation above to calculate the mass of the black hole:

M = \frac{v^{2} r}{G}.............(1)

<u>For M84:</u>

r = 8 pc = 8 * 3.08 * 10¹⁶

r = 24.64 * 10¹⁶ m

v = 400 km/s = 4 * 10⁵ m/s

G = 6.674 * 10⁻¹¹ m³/kgs²

Substituting these values into equation (1)

M = \frac{( 4*10^{5}) ^{2} *24.64* 10^{16} }{6.674 * 10^{-11} }

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<u>For M87:</u>

r = 20 pc = 20 * 3.08 * 10¹⁶

r = 61.6* 10¹⁶ m

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Substituting these values into equation (1)

M = \frac{( 5*10^{5}) ^{2} *61.6* 10^{16} }{6.674 * 10^{-11} }

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