Wikipedia:Sandbox/Archive: Difference between revisions
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link to new sandpit archive |
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{{historical}} |
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{{Please leave this line alone (sandbox heading)}} |
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This page contains the sandbox edit history from July 2005 to shortly after the [[Wikipedia:Administrators' noticeboard/IncidentArchive355#Apologies everyone...|attempted deletion disaster of 2008]]. For other history (listed in chronological order), see: |
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<!-- Hello! Feel free to try your formatting and editing skills below this line. As this page is for editing experiments, this page will automatically be cleaned every 12 hours. --> |
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*[[Wikipedia:Historical archive/Sandpit]], another early location for testing (it was then at the title Sandbox) |
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*[[Wikipedia:Historical archive/Earliest sandbox history]] |
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<i><b><font color="red"><font size="8">i ♥ tristan stillwell!</font></font></b></i> |
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*[[Wikipedia:Historical archive/Sandbox]] |
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*[[Wikipedia:Sandbox/History]] |
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*[[Wikipedia:Sandbox/Archive2]] |
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I LOVE U TERRI MANDERSON |
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By: Justin |
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The weight of the parcel is <math>\mathrm{V} \mathbf{g} </math>, while the pressure gradient force is <math> \frac{dp}{dz}</math>. Using the hydrostatic assumption (both terms equal zero) and observing that <math>\rho V \frac{dw}{dt}=0</math> in this case gives |
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<math>\rho V \frac{dw}{dt} = -V\frac{dp}{dz} -V\rho g </math> |
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Allowing for the pressure to be the sum of the environmental and parcel pressure <math>p = \bar{p} +p^\prime</math> yields the following as the buoyancy equation: <math>\frac{dw}{dt} = -\frac{1}{\rho}\frac{dp^\prime}{dz}+\frac{\bar{\rho}-\rho}{\rho}</math>. |
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From the second equation it is easily seen that if the parcel is denser than its environment(i.e. <math>p > \bar{p}</math>, it will have a negative buoyancy and will thus sink relative to the environment. The opposite case is also true (<math>p < \bar{p}</math> causes rising), while neutral buoyancy is achieved by the two terms being equal. |
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==FBI== |
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It can own CIA every day, if you agree, BAH! However if you don't I will eat your soul in real life, oh I forgot I can't, because I'm no demon, I'm a human. |
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Latest revision as of 14:23, 13 March 2019
 | This page is currently inactive and is retained for historical reference. Either the page is no longer relevant or consensus on its purpose has become unclear. To revive discussion, seek broader input via a forum such as the village pump. |
This page contains the sandbox edit history from July 2005 to shortly after the attempted deletion disaster of 2008. For other history (listed in chronological order), see:
- Wikipedia:Historical archive/Sandpit, another early location for testing (it was then at the title Sandbox)
- Wikipedia:Historical archive/Earliest sandbox history
- Wikipedia:Historical archive/Sandbox
- Wikipedia:Sandbox/History
- Wikipedia:Sandbox/Archive2