the density of liquid water is 1.0 g/cm”, the density of rock is 2.7 g/cm', the density of iron is 7.9 g/cm². Add this information to your graph. 9. Are the densities of the planets roughly proportional to their diameters? Use evidence to support your claim.​

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

Which symbol in the first law of thermodynamics represents the sum of the chemical and thermal energy stored in atoms and molecules? a. q b.w c.v d.u