The mass of the Sun is about 2.0 . 1030 kg, and its radius is about 696,000 km. The distance from it to the earth is 1.5

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The Mass Of The Sun Is About 2 0 1030 Kg And Its Radius Is About 696 000 Km The Distance From It To The Earth Is 1 5 1 (69.79 KiB) Viewed 53 times

The mass of the Sun is about 2.0 . 1030 kg, and its radius is about 696,000 km. The distance from it to the earth is 1.5. 108 km. The earth's mass is 6.0 . 1024 kg, and its mean radius is about 6300 km. The Moon's mass is 6.0 - 1024 kg, and the mean radius of its orbit is about 383,000 km. My mass is somewhat less than, but approximately 100 kg. a) What is the force of attraction between me and the Sun? This (and the next one) are just direct "plug-n-chug" applications of Newton's Law of Universal Gravitation: FG =G m b) What is the average force of attraction between me and the Moon? c) What would the escape velocity be for an object at the surface of the Sun? Honestly, this was somewhat redundant with a problem in the "shorts” (and in ). = fact probably easier). ve = ✓ 2GM d d) What is the total energy (Kinetic plus potential) for the earth's orbit around the Sun? (Treat it as though it were circular.) ΟΥ" What is the total energy (Kinetic plus potential for the Moon's orbit around the earth? (Treat it as though it were circular.) The form for this should have been on your sheet: Eorb GMmFor the earth around the sun this comes to about 57. 1034. (Sounds like a lot because it is. It's for a whole planet circling its sun. Joules are good for human size things.) 4