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4 cards from this section. Quick, good the night before a test.
What happens to shear stress in a fluid at rest?
Think about the forces acting on a fluid that is not moving.
Define gauge pressure.
Consider how pressure is measured from sea level.
What happens to shear stress in a fluid at rest?
Consider the nature of rest.
Gauge pressure is below atmospheric pressure.
Think about how it is measured.
You have a mercury barometer with a height of 760 mm. Calculate the atmospheric pressure at this height if the density of mercury is 13.6 g/cm^3.
Remember to convert density from g/cm^3 to kg/m^3 and height from mm to m.
A capillary tube with a diameter of 2mm is placed in water. Calculate the height to which the water will rise if the surface tension of water is 0.072 N/m and the contact angle is 0 degrees.
Make sure to use the density of water, 1000 kg/m^3.
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