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

28. a stone is projected at a cliff of height h with an initial speed of 42.0 mls directed at angle θ0 = 60.0° above the horizontal. the stone strikes at a, 5.50 s after launching. find (a) the height h of the cliff, (b) the speed of the stone just before impact at a, and (c) the maximum height h reached above the grou

When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?