How much heat is absorbed from a 56.00 g sample of mercury when its tempreature change is 289k?

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

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •