- #1
stuc
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Homework Statement
Homework Equations
The given ans is 9600 as attached above, but i get 15 000.
The Attempt at a Solution
Last edited:
Barometer Basics: Check Your Homework Answers
- Thread starter stuc
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In summary, the conversation is about a problem where the given answer is 9600, but the person is getting 15,000. They discuss the equations and attempts at solving the problem, including considering physical factors such as pressure and density. It is pointed out that the problem has nothing to do with Boyle's Law and the person is encouraged to try the calculation again and show their results.
The given ans is 9600 as attached above, but i get 15 000.
- #2
billy_joule
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stuc said:
Show your attempt so we can see where you went wrong.
- #3
stuc
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billy_joule said:
- #4
DrClaude
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Lets approach this from a physical point of view. What should be equal in both cases, and how does that relate to the density?
- #5
andrevdh
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Why do the liquid go up into the tube?
- #6
Icy98
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Pressure acting on both liquids is the same
- #7
andrevdh
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Can you relate the pressure to the height of the column of liquid in the tube?
- #8
andrevdh
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Then construct the equation pX = pY for the two liquid columns, that is the two columns are created by the same pressure.
- #9
stuc
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Boyle Law>?
- #10
DrClaude
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It has nothing to do with Boyle's law. It is actually a simple problem of statics.stuc said:
andrevdh almost gave you the answer in his replies.
- #11
SteamKing
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How do you apply Boyle's Law to a vacuum? 
- #12
andrevdh
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Just try the calculation again stuc and show us your results.
Related to Barometer Basics: Check Your Homework Answers
1. What is a barometer and how does it work?
A barometer is a scientific instrument used to measure atmospheric pressure. It works by using a glass tube filled with mercury or aneroid cells that expand or contract depending on air pressure. As the pressure changes, the liquid or cells move, indicating the current pressure.
2. How is atmospheric pressure related to weather?
Atmospheric pressure plays a crucial role in weather patterns. High pressure systems are associated with clear skies and dry weather, while low pressure systems bring clouds and precipitation. Changes in atmospheric pressure can also indicate approaching weather fronts and storms.
3. What are the units of measurement for atmospheric pressure?
The most common unit of measurement for atmospheric pressure is millibars (mb) or hectopascals (hPa). In the United States, inches of mercury (inHg) are also commonly used. Other units include pounds per square inch (psi) and atmospheres (atm).
4. How do you use a barometer to predict the weather?
To use a barometer to predict the weather, you must first monitor changes in atmospheric pressure. A steady rise in pressure usually indicates improving weather, while a steady drop may suggest incoming storms. A rapid decrease in pressure can also signal a severe weather event.
5. Can a barometer be used to measure altitude?
Yes, a barometer can be used to measure altitude. As altitude increases, atmospheric pressure decreases. By measuring the pressure at different altitudes, you can determine your elevation. However, this method is not as accurate as using a GPS or other specialized equipment.
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