Europa is a moon of Jupitar. Europa has a mass of 4.8 × 1022kg and is 6.71 × 105km from Jupiter which has a mass of 1.9 × 1027kg . What is the force of gravity between the two?

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 Europa is a moon of Jupitar. Europa has a mass of 4.8 × 1022kg and is 6.71 × 105km from Jupiter which has a mass of 1.9 × 1027kg . What is the force of gravity between the two? 

 

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Newton's universal law of gravitation states that any two objects on the universe attracts each other with a magnitude of force proportional to the product of their masses and inversely proportional to the square of the distance between their centre.

So the attractive force between the planet J and its moon is 

F=GMJMEd2               (1)

where G is the gravitational constant and is equal to 6.67×10-11 Nm2/kg2, MJ  and ME  are the mass of the planet J and its moon respectively. The distance between their centre is d.

 

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