A 1,400-kg car is traveling north at 13 m/s. Calculate the momentum of the car.

O 18,200 kg. m/s north

O 18.500 kg. m/s north

O 19,200 kg•m/s north

0 8.500 kg. m/s north

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Which accurately compares concave and convex lenses?

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?