# Bernoulli’s Energy Equation

## Problem 10 - Bernoulli's Energy Theorem

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## Problem 09 - Bernoulli's Energy Theorem

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## Problem 08 - Bernoulli's Energy Theorem

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## Problem 07 - Bernoulli's Energy Theorem

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## Problem 06 - Bernoulli's Energy Theorem

**Problem 6**

As shown in Figure 4-03, the smaller pipe is cut off a short distance past the reducer so that the jet springs free into the air. Compute the pressure at 1 if Q = 5 cfs of water. D_{1} = 12 inches and D_{2} = 4 inches. Assume that the jet has the diameter D_{2}, that the pressure in the jet is atmospheric and that the loss of head from point 1 to point 2 is 5 ft of water.

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## Problem 05 - Bernoulli's Energy Theorem

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## Problem 04 - Bernoulli's Energy Theorem

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## Problem 03 - Bernoulli's Energy Theorem

**Problem 3**

A 300-mm pipe is connected by a reducer to a 100-mm pipe. See Figure 4-02. Points 1 and 2 are at the same elevation, the pressure at 1 is 200 kPa. The discharge Q is 30 liters per second flowing from 1 to 2 and the energy lost from 1 to 2 is equivalent to 20 kPa.

- Compute the pressure at 2 if the liquid is water.
- Compute the pressure at 2 if the liquid is oil (sp gr = 0.80).
- Compute the pressure at 2 if the liquid is molasses (sp gr = 1.5).

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## Problem 02 - Bernoulli's Energy Theorem

**Problem 2**

From Figure 4-01, the following head losses are known: From (1) to (2), 0 m; from (2) to (3), 0.60 m; from (3) to (4), 2.1 m; from (4) to (5), 0.3 m. Make a table showing elevation head, velocity head, pressure head, and total head at each of the five points. How high above the center of the pipe will water stands in the piezometer tubes (3) and (4)?

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## Problem 01 - Bernoulli's Energy Theorem

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