Which best describes the way particles move to heat objects using conduction? A. Fast moving particles in warm objects collide with electromagnetic waves. B. Objects generate electromagnetic waves are carried away from the object emitting them. C. Particles expand with thermal energy, hot air rises and pushes cooler air down through circulation. D. Fast-moving particles collide with slower moving particles transferring their heat energy.

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 is the measurement of how fast an object moves relative to a reference point?

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?