6. It takes a minimum force of 280 N to move a 490 N crate. What is the coefficient of static friction between the crate and the floor?

Which best represents the law of conservation of mass ?

What does the law of conservation of mass state?

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.