Uploaded August 2015 | Updated September 2026, 2 weeks ago

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Answers:

1. J
2. GPE = mgh
3. Total energy remains constant - 700 J
4. KE = 0.5mv^2 = 0.5(100)(100)^2 = 500 000 J
5. 15 000 J
6. KE = 0 J
7. Position B
8. KE = 100 - 20 = 80 J
9. Position A
10. Position D
11. GPE = mgh = 2(100)(10) = 2000 J
12. KE = 2000 + 100 = 2100 J
13. W = Fd = 100(5) = 500 J
14. W = Fd = 200 (18) = 3600 J
15. V = 8 - 3 = 5 V
16. R = 3 + 6 = 9 Ω
17. R = 2.25 Ω
18. R = 5 Ω
19. I = V/R = 10/5 = 2 A
20. V = 4 V
21. V = 10 - 4 = 6 V