Solve this:

Q. Two identical spheres of radii r each are placed touching each other. The gravitational force between them is FG. It is found that F  α  rn, where 'n' is ____________.

Dear Student ,
Here in this case the mass of the sphere
, M1 and M2 = where ρ be the density of the sphere .

Therefore the distance between the centres of the spheres is , d = r+r = 2R
​Now the gravitational force between the spheres is ,


So n = 4

Regards
 

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