Answer:

Explanation:
We are given that
Gravitational force=
r=0,U(0)=0
We know that
Gravitational potential energy=


Substitute r=0 ,U(0)=0


Substitute the value

Answer:
Did you remember to put the lid back on the jar of mayonnaise?
Explanation: Hope this helps :)
The most exact answer is 78.4J also in this kind of options we can say answer "d"
Fusion reactions happen in stars
The answer for this is 1200N