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13-06-2021
Physics

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newton's law of universal gravitation

newtons law of universal gravitation class=

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spectrojamz spectrojamz

13-06-2021

Explanation:

The gravitational force exerted on an object by another is equal to that which the other exerts on it.

F=GMm/r²

G=6.67x10-¹¹Nm²/Kg²

r= 80cm=0.8m

F= [6.67x10-¹¹ x 70 x 55]/0.8²

F= 4 x 10^-7N.

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