Physics

Problem

The gravitational attraction between two small spheres of masses

0.20\,\text{kg}

and

0.30\,\text{kg}

is measured to be

2.0\times10^{-10}\,\text{N}

. Determine the distance between the centres of the spheres. (

G = 6.67\times10^{-11}\,\text{N m}^2\text{kg}^{-2}

)