A power plant produces 23 million Joules of electrical energy and 46 million Joules of wasted heat energy. What is the efficiency of this process

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

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?

What’s #16 asking me and how do i solve it?