Force that the Earth exerts on the Moon

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The discussion focuses on calculating the gravitational force exerted by the Earth and the Sun on the Moon, which has a mass of 7.4 x 10^22 kg. Participants mention using the formula F_g = Gm_1 m_2/d^2 for these calculations and suggest utilizing a gravitational force calculator for convenience. The importance of the Moon's mean radius, mass, and orbital velocity in these calculations is also highlighted. Questions arise about the significance of the radius in determining gravitational force. Overall, the conversation emphasizes the relevance of these parameters in understanding gravitational interactions.
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Let's say that the Moon has a mass of 7.4 x 10^22 kg. What's the force that the Earth, and the Sun exerts on the Moon?
 
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Just use

F_g = \frac{Gm_1 m_2}{d^2}
 
There's a gravitational force calculator if you search google as well.
 
Got it, thanks!
 
One could also use its mean radius, mass, and orbital velocity...
 
DoggerDan said:
One could also use its mean radius, mass, and orbital velocity...

Why does radius matter?
 
Drakkith said:
Why does radius matter?
of its orbit.
 
DaveC426913 said:
of its orbit.

Yes, thank you DaveC. Sorry, Drakkith, for not clarifying that.
 

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