Two clay balls collide head-on in a perfectly inelastic collision. The first ball has a mass of 0.600 kg and an initial velocity of 4.00 m/s to the right. The second ball has a mass of 0.300 kg and an initial velocity of 3.00 m/s to the left. What is the decrease in kinetic energy during the collision

How does the image distance (di) of a convex lens compare with the image distance of a concave lens? a. the image distance of the convex lens is positive, and that of the concave lens is negative. b. both are negative for a virtual image. c. both are positive for a virtual image d. the image distance of the convex lens is negative, and that of the concave lens is positive.

What is the primary force that suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force

How to tell if a molecule is polar or nonpolar with electronegativity