One of the contests at the school carnival is to throw a spear at an underwater target lying flat on the bottom of a pool. The water is 0.800 m deep. You're standing on a small stool that places your eyes 3.10 m above the bottom of the pool. As you look at the target, your gaze is 30∘ below horizontal. At what angle below horizontal should you throw the spear in order to hit the target?

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.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

If element x has 99 protons how many electrons does it have