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4 years ago

Classify this rock by using the drop-down menus to

Physics

2 answers:

MatroZZZ [7]4 years ago

8 0

Answer:coarse- grained, jagged,non-banded

Explanation:

ipn [44]4 years ago

5 0

Answer:here you go hope this helps

Explanation:

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3 years ago

Planets are not uniform inside. Normally, they are densest at the center and have decreasing density outward toward the surface.

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Answer:

a = 9.94 m/s²

Explanation:

given,

density at center= 1.6 x 10⁴ kg/m³

density at the surface = 2100 Kg/m³

volume mass density as function of distance

$\rho(r) = ar^2 - br^3$

r is the radius of the spherical shell

dr is the thickness

volume of shell

$dV = 4 \pi r^2 dr$

mass of shell

$dM = \rho(r)dV$

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now,

$dM = (\rho_0 - br)(4 \pi r^2)dr$

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$M = \dfrac{4\pi}{3}R^3\rho_0 - \pi R^4(\dfrac{\rho_0-\rho}{R})$

$M = \pi R^3(\dfrac{\rho_0}{3}+\rho)$

we know,

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$a = \dfrac{G( \pi R^3(\dfrac{\rho_0}{3}+\rho))}{R^2}$

$a =\pi RG(\dfrac{\rho_0}{3}+\rho)$

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3 years ago

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Answer:

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Explanation:

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3 years ago