9 Solids - PowerPoint PPT Presentation

Loading...

PPT – 9 Solids PowerPoint presentation | free to download - id: 22ab2f-ZDc1Z



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

9 Solids

Description:

9 Solids & Fluids. elasticity of solids. pressure and pascal's principle ... Pascal's Principle. Example: A2/A1 = 100. F2/F1 = 100. Buoyancy and Archimedes' Principle ... – PowerPoint PPT presentation

Number of Views:7
Avg rating:3.0/5.0
Slides: 20
Provided by: jeffbe6
Learn more at: http://www.austincc.edu
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: 9 Solids


1
9 Solids Fluids
  • elasticity of solids
  • pressure and pascals principle
  • buoyancy and archimedes principle
  • Homework
  • 1, 3, 5, 37, 39, 56, 69, 70.

2
Solid Deformation
  • stress force/area pressure
  • strain fractional change in length
  • Solid Moduli stress/strain stiffness

3
Solid Deformation
  • Length Change
  • stress F/A, strain DL/Lo,
  • Youngs Modulus, Y stress/strain.
  • Volume Change
  • stress F/A p, strain -DV/Vo,
  • Bulk Modulus, B -Dp/(DV/Vo)

4
Pressure, p
  • p force/area
  • Unit pascal, Pa
  • 1 Pa 1N/m2.
  • Example 100N applied to 0.25m2. Pressure
    100/0.25 400N/m2.

5
Density
  • r mass/volume
  • SI Unit kg/m3
  • common unit g/cm3
  • 1,000 kg/m3 1 g/cm3

6
Gauge Pressure is Differential Pressure
7
Depth and Fluid Pressure
  • P Po rgd
  • P is the pressure at depth d.
  • Po is the pressure at the fluid surface
  • r is the fluid density
  • Example increase in pressure at a depth of 1m in
    water (1,000)(9.8)(1.0) Pa

8
Barometer
9
Pascals Principle
Example A2/A1 100 F2/F1 100
10
Buoyancy and Archimedes Principle
11
L0.5m cube of steel in water
  • Vo L3 (0.5m)3 0.125 m3
  • FB (fl.density)(Vo)(g)
  • (1,000kg/m3 )(0.125 m3 )(9.8N/kg)
  • 1225N
  • Compare FB to W of object
  • W mg (ob.density)(ob.volume)(g)
  • (7,800)(0.125)(9.8)
  • 9555N
  • What is its weight when under water?
  • W W FB 8330N

12
1kg object is weighed in water
  • W 9.2N. What is its density?
  • FB W W 9.8N 9.2N 0.6N
  • FB (fl.den.)(ob.vol.)(g) 0.6N
  • FB (1000)(ob.vol.)(g) 0.6N
  • (ob.vol.) 6.12x10-5cubic meter
  • (ob.den.) mass/vol. 1kg/(6.12x10-5)
  • 16,333 kg/m3. 16.333 g/cm3.
  • This is not pure gold.

13
(No Transcript)
14
End
15
Example Object mass 0.150kg density 2g/cm3 is
weighed in water.
16
(No Transcript)
17
Example calculate speed water exits the hole in
terms of the given parameters.
18
(No Transcript)
19
(No Transcript)
About PowerShow.com