kellyspeakslouder kellyspeakslouder

09-10-2018
Mathematics

contestada

4. Calculate the gravity force between the Earth (m = 610^24 Kg) and the Moon (m = 710^22 Kg) when their distance is 410^8 m. (use G = 710^-11 Nm2/Kg2)

Fg = 1.8 * 10^52 N

the answer is given, but can someone explain how to get it?? I've tried for an hour to figure it out, but I am not getting it

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jimthompson5910 jimthompson5910

09-10-2018

r = 4*10^8 is the average distance from the earth to the moon (in meters).

m1 = 6*10^24 is the mass of the earth

m2 = 7*10^22 is the mass of the moon

G = 7*10^(-11) is the gravitational constant

Plug those values into the formula shown on the attached image (see below). Then simplify. When doing all that, I get the answer to be 1.8 * 10^20 newtons, so I'm not sure where your teacher is getting 52 as the exponent.

Ver imagen jimthompson5910

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