A photon has 8. 0 × 10–15 j of energy. Planck’s constant is 6. 63 × 10–34 j•s. What is the frequency of the photon? 1. 21 × 1019 hz 8. 3 × 10–20 hz 1. 21 × 10–19 hz 8. 3 × 1020 hz.

If you find yourself sharing the road with an aggressive driver, you should: a. attempt to get the driver off the road b. give the driver extra space c. make eye contact and smile

Darwin studied two different types of tortoises on the galapagos islands. sort the characteristics based on which tortoise they describe.

Abox contains 40 number tiles numbered 1 to 40. if a tile is drawn at random, what is the probability that the number drawn is a multiple of 3 or 4? find p(multiple of 4 or multiple of 5)