Problem: A cylinder, 16 cm long and 3 cm in radius, is made of two different metals bonded end-to-end to make a single bar. The densities are 4.4 g/cm3 and 6.3 g/cm3. What length of the lighter-density part of the bar is needed if the total mass is 2377 g? 1. 9.92098 2. 13.1373 3. 7.52775 4. 12.5493 5. 11.7805 6. 10.4417 7. 9.5286 8. 9.69549 9. 8.8057 10. 10.0839

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Problem Details

A cylinder, 16 cm long and 3 cm in radius, is made of two different metals bonded end-to-end to make a single bar. The densities are 4.4 g/cm3 and 6.3 g/cm3. What length of the lighter-density part of the bar is needed if the total mass is 2377 g?

1. 9.92098

2. 13.1373

3. 7.52775

4. 12.5493

5. 11.7805

6. 10.4417

7. 9.5286

8. 9.69549

9. 8.8057

10. 10.0839

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Based on our data, we think this problem is relevant for Professor Erskine's class at TEXAS.