An object in projectile motion will follow which path? curved up from the ground
curved down toward the ground
straight down toward the ground
straight up from the ground

Which describe reflection? check all that apply. light bounces off a boundary.

What type of nuclear decay causes the atomic number of an element to increase by 1?

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?