A water molecule consists of an oxygen atom with two hydrogen atoms bound to it. The angle between the two bonds is 106. If each bond is 0.126 nm long, how far from the oxygen atom is the center of mass of the molecule? Take the mass of an oxygen atom to be 16 times the mass of a hydrogen atom. Answer in units of nm. Answer in units of nm A child bounces a 58 g superball on the sidewalk. The velocity change of the superball is from 27 m/s downward to 14 m/s upward. If the contact time with the sidewalk is m 3, what is the magnitude of the average force exerted on the superball by the sidewalk? Answer in units of N. Answer in units of N Your response... x #1. 105,000 A(n) 5.8 kg object moving at 2.8 m/s east- ward has a one-dimensional elastic collision with a(n) 8.5 kg object moving at 3.1 m/s in the opposite direction. What is the total kinetic energy of the two- mass system after the collision? Answer in units of J. Answer in units of J