The following table shows the period of revolution of some unknown planets of equal mass.

period of revolution

planet period of revolution
w 1.9 years
x 11.8 years

which of the following best explains which planet is farther from the sun?

a. planet w, because gravity is inversely proportional to the square of distance
b. planet x, because gravity is inversely proportional to the square of distance
c. planet x, because the sun exerts a greater gravitational force on it than on planet w
d. planet w, because the sun exerts a greater gravitational force on it than on planet x

What is the frequency of a light wave with a wavelength of 620nm

Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called