Four 8.5-kg spheres are located at the corners of a square of side 0.90 m. A. Calculate the magnitude of the gravitational force exerted on one sphere by the other three.

B. Calculate the direction of the gravitational force exerted on one sphere by the other three.

Explanation:

the answer is in the above image

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as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!