PHYSICS 151

University of Hawaii, Manoa
Dept. of Physics & Astronomy

Instructor: Michael Nassir
Office: Watanabe Hall, Rm. 426, (808) 956-2922
E-mail: nassir @ hawaii.edu

Return to PHYS 151 Exam & Answers page

ANSWERS to FINAL EXAM from SPRING 2005

Part A

1a. 8.5 x 10^11 mW
b. 2.4 atm
c. 2.0 x 10^3 cm^3 OR 2000 cm^3
d. 1.5 x 10^17 µm
e. 19 g/cm^3

2. F
3. A
4. E
5a. D (v_0y = v_0 * sin 35)
5b. A
6. A, C, D, E, and F
7a. F
7b. F
7c. T
8. A
9. D

Part B

10a. C
10b. B
10c. D
10d. A? -- poorly written question -- not enough constraints
11. B
12a. A
12b. B
13. E
14. C
15a. D
15b. F
15c. A
16. C
17. E

Part C

1a. 8.3 m (using conservation of energy)
1b. 7.2 s
1c. D
1d. B
1e. B
1f. A and B

2a. 69 N*m (clockwise)
2b. A
2c. A
2d. 460 kg*m^2

Part D

3a. 99 atm
3b. 9.5 x 10^3 kg OR 9500 kg

4a. 4.4 kg
4b. 12 Hz and 24 Hz, respectively
4c. f_1: 1st harmonic (fundamental) has one big antinode at the center of string and nodes at both ends;
f_2: 2nd harmonic (1st overtone) has nodes at both ends and one node in center, with antinodes 1/4 and 3/4 along string
4d. A
4e. B
4f. 5