An 12 kg mass and a 18 kg mass experience a force of gravity pulling the balls towards each other of 4.7 x 10^-10 N. What is the separation distance of the two masses?

What object a collides with object b and bounces back its final momentum is?

What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.

How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,ℓ=2n=4,ℓ=2 electronselectrons =6,ℓ=ℓ=−1n=6,ℓ=2,mℓ=−1