Which type of reaction releases the most energy? nuclear chemical physical

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.