The diagram below shows a roller coaster on a frictionless track. at position 1 it is at 100 meters, at 2 it is at 9, at 3 it's at 80, and at 4 it's 40 meters. at point one, it has 10 bars of potential energy and 0 kinetic energy. at what point of the track would it have 6 bars of potential energy and 4 bars on kinetic energy?

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

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?

How to tell if a molecule is polar or nonpolar with electronegativity