13_InstSolManual_PDF_Part13

# 13_InstSolManual_PDF_Part13 - Fluid Mechanics 13-13 13.62...

• Notes
• 1

This preview shows page 1. Sign up to view the full content.

13.62. Set Up: Steel has density The maximum buoyant force is Solve: The volume of steel in the barge is The mass of the barge is and The volume of this mass of coal is The volume of the barge is this mass of coal easily fits into the barge. 13.63. Set Up: The density of lead is The buoyant force when the wood sinks is where is the volume of the wood plus the volume of the lead. Solve: Using and gives then gives Reflect: The volume of the lead is only 3.9% of the volume of the wood. If the contribution of the volume of the lead to is neglected, the calculation is simplified: and The result of this calculation is in error by about 9%. 13.64. Set Up: where V is the volume of the airship. The lift is Solve: (a) so (b) Hydrogen is explosive, helium is not. 13.65. Set Up: Seawater has density is the submerged volume: where is the volume of the life preserver and is the volume of the person. Solve: gives r lp 5 1 1.03 3 10 3 kg / m 3 21 0.0400 m 3 1 3 0.80 43 0.0765 m 3 42 2 75.0 kg 0.0400 m 3 5 731 kg / m 3 r lp 5 r sw 1 V lp 1 0.80 V p 2 2 m p V lp r sw 1 V lp 1 0.80 V p 2 g
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern