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Lecture Comments (3)

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Post by Mosira Luekenga on November 3, 2015

The extra examples aren't working

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Post by Shehan Gunasekara on June 7, 2012

So for the swimming pool question i was just wondering whether you still add the extra force of 3000N to the pressure equation?????

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Post by Callistus Elue on September 27, 2011

At the point when it should progress to Hydraulic Press, it reverts to the begining of the lecture or the video.

Fluids: Statics

  • Density is the mass per unit volume: Density = Mass/Volume.
  • If a force F acts on a surface of area A, the pressure P on the surface is P = F/A.
  • The pressure in a fluid at a depth h is P = P at the surface + (fluid density)gh.
  • If an object is placed in a fluid, such as water, the fluid exerts an upward force on the object; this force is known as the buoyant force.
  • Archimedes principle: The buoyant force acting on an object in a fluid is equal to the weight of fluid displaced by the object.

Fluids: Statics

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Mass Density 0:23
    • Density of Mass Solid
    • Density of Liquid
    • Density of Gas
    • Density of Aluminium
    • Desnsity of Water
    • Density of Air
    • Example: Room
  • Pressure 4:59
    • Pressure at Different Points in Liquid
    • Force on Face of Cube
    • Molecules Collide on Face of Cube
    • Newton's Third Law
  • Variation of Pressure With Depth 15:12
    • Atmospheric Pressure
    • Cylinder in a Fluid of Height H
  • Hydraulic Press 29:50
    • Fluid Cylider
    • Hydraulics
  • Archimedes Principle 40:23
    • Object in a Fluid (Submerged)
    • Volume of a Cylinder
    • Mass of Displaced Fluid
    • Buoyant Force
  • Weighing a Crown 51:03
    • Crown Suspended on Scale in Air
    • Crown Weighed in Water
    • Density of Gold
  • Extra Example 1: Aluminum Ball in Water
  • Extra Example 2: Swimming Pool
  • Extra Example 3: Helium Balloon
  • Extra Example 4: Ball in Water