Why does the water in a swimming pool stay cool on a hot, sunny day? because radiation has no effect on water
because of convection
because the pool is a good insulator
because the Sun's rays are reflected off of the pool's surface

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.

Give an example in which the electrical energy changes to light energy