A truck falls off a cliff. If the cliff is 45 m high, how much time for the truck to reach the bottom?

Which of the following is an example of motion in two dimensions?

Which atomic model was proposed as a result of j. j. thomson’s work?

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?