Answer:
The conversion of stored potential energy into kinetic energy can also be harnessed to power homes, factories and entire cities. The most notable example is the Hoover Dam. The Hoover Dam is an arch-gravity dam by design. This design name is the first clue as to how exactly the dam harnesses energy.
Answer:
11. True 12. True 13. False 14. True 15. True 16. True 17. True 18. False
19. True 20. not sure
Idk why there's too many true
Answer:
The correct answer is - people accept it in exchange for goods and services.
Explanation:
Money is valuable because we know that it is "accepted." Money can be used to purchase goods and services even though it is no longer backed by gold. Security measures prevent counterfeiting but do not add value.
<span>For two polarizing filters to block out all light passing through them, one filter should be rotated 90 degrees from the other.
hope this helps!
-Payshence xoxo</span>