A baseball bat strikes a baseball with a force of 35 N. The bat is in contact with the ball for 0.12 s. What impulse did the bat exert on the baseball to change the ball's momentum?

What do you think car designers do if the damage caused by a crash test is too severe?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system