A metal alloy is formed by combining metals, for example brass is an alloy of copper and zinc. An alloy is best described as - A. an element. B. a molecule. C. a heterogeneous mixture. D. a solution.

Aregular polygon has angkes of size 150° each.how many side has the polygon

15. give an example for some particles or waves that are moving faster than light in everyday life 16. what is a laser? 17. what is an oscilloscope? 18. what does it means practically that nothing is faster than light in vacuum? 19. what is vacuum?

Apair of 10μf capacitors in a high-power laser are charged to 1.7 kv.a. what charge is stored in each capacitor? b. how much energy is stored in each capacitor?