Lecture17_Pushkar_2011 - PHYSICS 220 Lecture 18 Fluid...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 17 Purdue University, Physics 220 1 Lecture 18 Fluid Dymanics PHYSICS 220
Background image of page 1

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

View Full DocumentRight Arrow Icon
Lecture 17 Purdue University, Physics 220 2 Archimedes’ Principle • Buoyant Force F B Weight of fluid displaced F B = ρ fluid V disp g F g = mg = ρ object V object g Object sinks if ρ object > ρ fluid Object floats if ρ object < ρ fluid If object floats… F B = F g Therefore ρ V g = ρ V g
Background image of page 2
Lecture 17 Purdue University, Physics 220 3 Suppose you float a large ice-cube in a glass of water, and that after you place the ice in the glass the level of the water is at the very brim. When the ice melts, the level of the water in the glass will: A) Go up, causing the water to spill out of the glass B) Go down C) Stay the same CORRECT Exercise W ice = F B =   ρ W g V displaced W water made from ice = ρ W g V water made from ice W ice = W water made from ice V displaced = V water made from ice
Background image of page 3

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

View Full DocumentRight Arrow Icon
Lecture 17 Purdue University, Physics 220 4 Exercise Which weighs more: A) A large bathtub filled to the brim with water B) A large bathtub filled to the brim with water with a battle-ship floating in it C) They weigh the same Tub of water Tub of water + ship Overflowed water CORRECT Weight of ship = Buoyant force = Weight of displaced water
Background image of page 4
Lecture 17 Purdue University, Physics 220 5 iClicker Which weighs more: A) A large bathtub filled to the brim with water B) A large bathtub filled to the brim with water with a battle-ship sinking to the bottom
Background image of page 5

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

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/10/2011 for the course PHYS 220 taught by Professor Chang during the Spring '09 term at Purdue University-West Lafayette.

Page1 / 15

Lecture17_Pushkar_2011 - PHYSICS 220 Lecture 18 Fluid...

This preview shows document pages 1 - 6. Sign up to view the full document.

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