When a liquid is cooled, the kinetic energy of the particles . a decrease b increase cstay the same the force of attraction between the particles a decrease b increase cstay the same , the space between the particles a decrease b increase cstay the same , and the matter changes its state to solid.

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?