Which action will decrease the gravitational force between two objects?

A. Moving the objects farther apart
B. Adding some mass to one of the objects
C. Moving the objects closer together
D. Doubling the mass of each object

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).