What is the change in velocity of a 22-kg object that experiences a force of 15 N for 1.2 seconds?

Which statement best describes how private industry decides where to spend the money on research and development

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.