(b) What is the buoyant force on the block?

1. 5 N (0/113) (0%)
2. 7.5 N (2/113) (2%)
3. 12.5 N (5/113) (4%)
4. 20 N (10/113) (9%)
5. 30 N (0/113) (0%)
6. 50 N (96/113) (85%)
7. None of the above (0/113) (0%)

(c) What percent of the block’s volume is submerged at the moment the string breaks?

1. Less than 25% (0/108) (0%)
2. Greater than or equal to 25% but less than 40% (1/108) (1%)
3. Greater than or equal to 40% but less than 50% (0/108) (0%)
4. 50% (1/108) (1%)
5. Greater than 50% but less than 75% (5/108) (5%)
6. 75% (88/108) (82%)
7. Greater than 75% (8/108) (7%)
8. This is a trick question! The string doesn't break. (5/108) (5%)

(d) When the block returns to equilibrium what percent of the block's volume is submerged?

1. 5% (1/112) (1%)
2. 10% (3/112) (3%)
3. 15% (103/112) (92%)
4. 20% (3/112) (3%)
5. 25% (1/112) (1%)
6. 30% (1/112) (1%)
7. None of the above (0/112) (0%)