## Example

Problem: A column of water 2.31 ft high exerts 10 psi. To produce a pressure of 50 psi requires a water column that is how high?

Solution:

• The pressure at the bottom of a container is only affected by the height of water in the container and not by the shape of the container. If we were to take three differently shaped containers and fill them to the same level, the pressure at the bottom of each container would be the same.

• The term head is used to designate water pressure in terms of the height of a column of water in feet. For example, a 10-ft column of water exerts 4.33 psi. This can be expressed 4.33 psi pressure or 10 ft of head.

## Guide to Alternative Fuels

Your Alternative Fuel Solution for Saving Money, Reducing Oil Dependency, and Helping the Planet. Ethanol is an alternative to gasoline. The use of ethanol has been demonstrated to reduce greenhouse emissions slightly as compared to gasoline. Through this ebook, you are going to learn what you will need to know why choosing an alternative fuel may benefit you and your future.

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