The strength of the gravitational force between two objects depends on two factors: mass and distance. suppose that two objects attract each other with gravitational force of 16 units. If the distance between the two objects is doubled, then what is the new force of attraction between the two objects?

The new force of attraction between the two objects = 4 units

Gravity is a force that arises because of the attraction between objects with mass.  

The magnitude of this attraction is proportional to the mass of the object.  

The greater the mass of the object, the greater the gravitational force  

Relationships can both be stated in  

Newton's Gravity Law:  

with F = gravitational force,  6.67 × 10⁻¹¹

G = gravitational constant,  

m1, m2 = mass of object,  

r = distance between two objects.  

Because m₁,m₂ and G constant, then :

Suppose that, gravitational force 16 units.

If the distance between the two objects is doubled, then what the new force :

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.