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29 Nov 2019

During a solar eclipse, the moon (of mass 7.36 × 1022 kg), Earth(of mass 5.98 × 1024 kg), and Sun (of mass 1.99 × 1030 kg) lie onthe same line, with the moon between Earth and the Sun.
1.What gravitational force is exerted on the moon by the Sun? Theuniversal gravitational constant is 6.673 × 10-11 N · m2/kg2,theEarth-moon distance is 3.84 × 108 m, and the Earth-Sun distance is1.496 × 1011 m.
Answer in units of N.
2.What gravitational force is exerted on the moon by Earth?Answerin units of N.
3.What gravitational force is exerted on Earth by the Sun? Answerin units of N.

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

1. What is the gravitational potential of the sun-earth? The mass of the sun is 1.99×1030 kilograms and the mass of the earth is 5.98×1024 kilograms. The mean earth-sun distance is 150×106 kilometers.

2. What is the gravitational potential energy of the moon with respect to the earth? The mass of the moon is 7.35×1022 kilograms and the mass of the earth is 5.98×1024 kilograms. The earth to moon distance is 384400 kilometers.

At a certain instant, the earth, the moon, and a stationary 1220 kgspacecraft lie at the vertices of an equilateral triangle whosesides are 3.84 \times 10^{5}\:{\rm km} in length.

Find the magnitude of the net gravitational force exerted on thespacecraft by the earth and moon.
Take the gravitational constant to be 6.673 \times 10^{-11}\:{\rmN} \cdot {\rm m}^{2}/{\rm kg}^{2}, the mass of the Earth to be 5.97\times 10^{24}\:{\rm kg}, the mass of the Moon to be 7.35 \times10^{22}\:{\rm kg}.

Find the direction of the net gravitational force exerted on thespacecraft by the earth and moon. State the direction as an anglemeasured from a line connecting the earth and the spacecraft.

What is the minimum amount of work that you would have to do tomove the spacecraft to a point far from the earth and moon? You canignore any gravitational effects due to the other planets or thesun.

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