A 19.0 g toy car moving to the right at 23.0 cm/s has an elastic head-on collision with a 32.0 g toy car moving in the opposite direction at 39.0 cm/s. After colliding, the 19.0 g car moves with a velocity of 19.0 cm/s to the left. Find the velocity of the 32.0 g car after the collision. ___cm/s to the left

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.