Next, we’ll examine magnetic force. Bring the ends of your two magnets together. Explore the three possible combinations. In two of the combinations, the two ends are the same. In one combination, the two ends are different. Describe the force you feel in each combination.

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?