Two spherical objects have masses of 3.1 x 10^5 kg and 6.5 x 10^3 kg. The gravitational attraction between them is 65 N. How far apart are their centers? (answer to 2 digits)

Their centers are at the distance of "".

Given:

Mass,

Gravitational force,

We know,

By using the Gravitational law, we get

→

By substituting the values, we get

→

→  

Thus the response above is right.      

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4.55 x 10⁹m

Explanation:

Given parameters:

Mass of object 1  = 3.1 x 10⁵kg

Mass of object 2 = 6.5 x 10³kg

Gravitational force  = 65N

Unknown:

Distance between them  = ?

Solution:

To solve this problem, we use the expression below from the universal gravitational law;

    Fg  =      

   G = 6.67 x 10⁻¹¹

        65  =    

   Distance  = 4.55 x 10⁹m

explanation:

ice to water 1 water to vapour 2 latent heat