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Part A
1a. A
1b. E
1c. D
2. E
3a. B
3b. D
4. A
5. B
6. C
7. D
8a. D
8b. B
8c. A
8d. A
9. E
10a. F
10b. C
10c. E
Part B
1a. 0.16 g_Earth OR (4/25) g_Earth
1b. 670,000 km or 671,000 km (depending on which other
moon's data is used)
2a. µ_static = tan (a)
= 0.364
2b. v_final = sqrt(2 * g * h) = 5.42 m/s
2c(i). D (Since all three blocks fall through the same
vertical distance, all three lose the same gravitational potential
energy, and all three gain the same kinetic energy, so all three
have the same final speed.)
2c(ii). C (The steeper the slope, the greater the downhill
acceleration: a = g * sin(a).
The greater the downhill acceleration, the shorter the time of
descent.)