Gravity is directly proportional to the product of the two. Masses and inversely proportional to the square distance between the two masses.
Answer:
The way in which objects exert forces on each other is described by Newton’s 3rd law of motion
Explanation:
Objects with mass exert forces on each other via the force of gravity. This force is proportional to the mass of the two interacting objects and is inversely proportional to the square of the distance between them. The factors G, M, and rare the same for all masses at the surface of the Earth.
Answer:

Also we know that for cyclic process change in internal energy is always ZERO
Explanation:
First gas is compressed isobarically such that its volume is half of initial volume
So its temperature is also half
So heat given in this process is given as

for diatomic gas we have

so we will have


Now in adiabatic process heat is not transferred
so in this process

so we have



Now it is again reached to original pressure
so temperature will become initial temperature
so heat given in that part

here we know that



So total heat given to the system is


Also we know that for cyclic process change in internal energy is always ZERO