Two objects are gravitationally attracted to each other. What happens to their gravitational force if the mass of each is quadrupled and they are kept at the same distance apart? a
8 times as much
b
1/8 as much
c
1/16 as much
d
4 times as much
e
16 times as much
f
1/4 as much

Awelder using a tank of volume 7.50×10^-2 m^3 fills it with oxygen (with a molar mass of 32.0 g/mol ) at a gauge pressure of 3.30×10^5 pa and temperature of 37.1 ∘c. the tank has a small leak, and in time some of the oxygen leaks out. on a day when the temperature is 23.1 ∘c, the gauge pressure of the oxygen in the tank is 2.00×10^5 pa . a) find the initial mass of oxygen. b) find the mass of oxygen that has leaked out.