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A moon is in orbit around a planet. The​ moon's orbit has a semimajor axis of 4.3 times 10 Superscript 8 Baseline m and has an orbital period of 1.516 days. Use these data to estimate the mass of the planet.

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Answer:

The mass of the planet is [tex]2.7\times10^{27}\ kg[/tex].

Explanation:

Given that,

Semi major axis [tex]a= 4.3\times10^{8}[/tex]

Orbital period T=1.516 days

Using Kepler's third law

[tex]T^2=\dfrac{4\pi^2}{GM}a^3[/tex]

[tex]M=\dfrac{4\pi^2}{GT^2}a^3[/tex]

Where, T = days

G = gravitational constant

a = semi major axis

Put the value into the formula

[tex]M=\dfrac{4\times(3.14)^2}{6.67\times10^{-11}(1.516\times24\times60\times60)^2}(4.3\times10^{8})^3[/tex]

[tex]M=2.7\times10^{27}\ kg[/tex]

Hence, The mass of the planet is [tex]2.7\times10^{27}\ kg[/tex].

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