Two balls, each with a mass of 0.876 kg, exert a gravitational force of 8.57 x 10-11 N
on each other.
How far apart are the balls? The value
of the universal gravitational constant is
6.673 x 10-11 Nm²/kg?.
Answer in units of m.

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;

helium

oxygen

neon

sodium