{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

solution-hw22 - lai(yl8859 HW22 Ross(15200 This print-out...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
lai (yl8859) – HW22 – Ross – (15200) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 2) 10.0 points Calculate the pressure at an ocean depth of 1500 m. The acceleration of grav- ity is 9 . 8 m / s 2 , atmospheric pressure is 1 . 01 × 10 5 Pa , and the density of the sea wa- ter is 1024 kg / m 3 . Correct answer: 1 . 51538 × 10 7 Pa. Explanation: Let : g = 9 . 8 m / s 2 , P 0 = 1 . 01 × 10 5 Pa , ρ = 1024 kg / m 3 , and h = 1500 m . P = P 0 + ρ g h = 1 . 01 × 10 5 Pa + (1024 kg / m 3 ) (9 . 8 m / s 2 ) (1500 m) = 1 . 51538 × 10 7 Pa . 002 (part 2 of 2) 10.0 points Calculate the total force exerted on the out- side of a circular submarine window of diam- eter 28 . 1 cm at this depth. Correct answer: 9 . 39775 × 10 5 N. Explanation: Let : r = 14 . 05 cm = 0 . 1405 m . F = P A = P π r 2 = (1 . 51538 × 10 7 Pa) π (0 . 1405 m) 2 = 9 . 39775 × 10 5 N . 003 (part 1 of 2) 10.0 points In a car lift used in a service station, com- pressed air exerts a force on a small piston of circular cross-section having a radius of 3 . 84 cm. This pressure is transmitted by a liquid to a second piston of radius 19 cm.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    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.

    Student Picture

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

  • Left Quote Icon

    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.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    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.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern