Chapter 3: Fluid Mechanics

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Fluid

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20 Terms
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Fluid

refers to both liquids and gases

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<p></p>
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<p></p>

density formula

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Pressure

force that is distributed over any small area of the object’s surface

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<p></p>
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<p></p>

1 Pa (pascal) is equal to

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Hydrostatic Pressure

liquid is at rest

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Buoyant Force

net upward force

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Volume Flow Rate

is the volume of fluid that passes a particular point per unit time

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Continuity Equation

<p></p>
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Bernoulli’s Equation

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The Bernoulli Effect

At comparable heights, the pressure is lower where the flow speed is greater.

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<p>of oil has a mass of 0.8 kg, then the density of this oil is</p>
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<p>of oil has a mass of 0.8 kg, then the density of this oil is</p>

of oil has a mass of 0.8 kg, then the density of this oil is

<p>of oil has a mass of 0.8 kg, then the density of this oil is</p>
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At sea level, atmospheric pressure, P atm, is about ___________; this is 1 atmosphere.

101,300 Pa

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Archimedes’ principle

The strength of the buoyant force on the object is equal to the weight of the fluid displaced by the object.

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Viscosity

is the force of cohesion between molecules in a fluid

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A circular pipe of non-uniform diameter carries water. At one point in the pipe, the radius is 2 cm and the flow speed is 6 m/s.

(a)What is the volume flow rate?

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Density is denoted by the letter?

**p (the Greek letter rho)

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subscript ⊥

means perpendicular

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pressure is a scalar

when pressure is the magnitude of the force per area

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SI units, flow rate is expressed

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