What do Kepler's laws describe? O A. The forces between any two objects
O B. The effect of mass on gravity
C. The reason gravity acts on mass
O D. The relationship between period and orbit size

If you were to drop a rock from a tall building, assuming that it had not yet hit the ground, and neglecting air resistance. what is its vertical displacement (in m) after 6 s?

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader