On a weekend trip to the beach, your friends put you in charge of pulling the cooler out to your picnic area. you estimate the cooler has a mass of about 15 kg, and the distance from the car to the picnic area is a level 50 m. you hold the handle at 25° above the horizontal, exerting a force of 25-n on the cooler from the handle. how much work does the handle do on the cooler while moving from the car to the picnic area?

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

The two required components for a generator

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?