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 FIRST gives everyone lots of practice in getting used to late nights. - waialua359 [more] |
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| FIRST gives everyone lots of practice in getting used to late nights. - waialua359 [more] |
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#3
29-06-2005, 09:30
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Re: Pressure physics problems
Sanddrag,
Read the problem carefully and see what they are asking for. Pressure is generally reported two ways: 1) absolute pressure (i.e. add in atmospheric pressure); or 2) relative pressure (i.e. how much pressure above atmospheric). Some problems require absolute pressure and some require relative. For example, tire pressure is relative pressure. Measuring pressure altitude with an altimeter is absolute pressure. 
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