A 5 kg box is sliding across the floor at 5 m/s. It hits another box that is 10 kg and is sitting still. After the impact, the 5 kg box is moving at 2.5 m/s. How fast is the second box moving?

What are the factors that affect the resistance of a wire?

Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.

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