ps12b32 - Ph 111.01 November 19, 2008 PS 12b (32) Problem...

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

View Full Document Right Arrow Icon
Ph 111.01 November 19, 2008 PS 12b (32) Problem 1. In this problem, please make sure to use the density of seawater = 1025 kg/m 3 . The bottom of the Mariana Trench, located in the Pacific Ocean, is about 11,000 m below the ocean's surface, making it the deepest ocean depth on Earth. If an underwater vehicle were exploring the region, at a depth of 10900 m, a.) What force would the water exert on the vehicle's circular observation window, which has a radius of 0.1 m? N b.) The mass of a jetliner is 1.2*10 5 kg. Please fill in the following relationship: the force on the window is as much as the weight of jetliners. A h Solution. (a) The pressure due to a depth h of sea water is () ( )( ) ( ) 32 8 1025 kg/m 9.8 m/s 10900 m 1.095 10 Pa 1084 atm! pg h x ρ Δ= = = = We can safely forget about taking into account the pressure inside the bathysphere, since it is so small compared with the pressure outside. Then the force on the window is ( ) 2 28 0.1 m 3.44 10 N Fp Ap r x x ππ == = = 6 (b) In terms of jetliner weights, 6 5 jetliner 2.925 jetliner weights 1.2 10 kg 9.8 N/kg x F mg x Problem 2.
Background image of page 1

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

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

This note was uploaded on 05/13/2010 for the course PHYSICS 111 taught by Professor Staff during the Fall '08 term at S.F. State.

Page1 / 3

ps12b32 - Ph 111.01 November 19, 2008 PS 12b (32) Problem...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online