Cedric not carrying that his mother will yell at him for wearing out his 15.0 kg gym bag drags it across the gym floor for a distance of 30 m. If the coefficient of static friction is 0.314 and the kinetic friction is 0.11, how much thermal energy does he create?

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

Most short-period comets do not have randomly oriented orbits because

Often called simply "velocity," this is the velocity of an object at a particular moment in time.