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Lecture_21

# Lecture_21 - 11.9-11.10 The Bernoulli Effect The Bernoulli...

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11.9-11.10 The Bernoulli Effect The Bernoulli Effect is one topic we will study qualitatively which deals with fluids in motion. It is basically an energy conservation effect for a given volume of fluid. 2 2 2 2 1 2 1 2 1 2 1 1 gy v P gy v P ρ + + = + + The Bernoulli Equation It demonstrates the relationship between pressure, speed, and height of a fluid. Qualitatively, if the speed of a fluid increases, the pressure in the fluid decreases. This effect occurs in many situations: Airplanes Shower curtains Curve balls Truck tarps v 1 v 2 p Prairie dog homes Air flow

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Ch. 12 Temperature and Heat 12.1 Temperature What is Temperature ? It is a measure of how “hot” something is. We use Thermometers to measure the temperature of something. Most rely on the fact that materials expand when heated. There are several different temperature scales. The two most commonly used are Fahrenheit and Celsius : Celsius Fahrenheit Boiling point of water 100 o C 212 o F Freezing point of water 0 o C 32 o F Between the freezing and boiling points, we have 180 o F and 100 o C. Thus, 100 o C = 180 o F.
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Lecture_21 - 11.9-11.10 The Bernoulli Effect The Bernoulli...

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