Physics Help Forum Problem finding Th

 Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

 Nov 2nd 2013, 03:50 PM #1 Junior Member   Join Date: Nov 2013 Posts: 1 Problem finding Th Hi guys, I am having some trouble with the calculation of Th in a potato cannon lab. I have found most of the information needed to get the temp, though I don't know how to set it up. Following is the list of variables I have found: Volume - 1.39605L Pressure - 141415 Change in volume - 1.39605L Force - 1385.86 Area - .0098m^2 Measurements: Cylinder 1 - .771m Cylinder 2 - .655m radius 1 - .025m radius 2 - .0565m height of potato when shot up - 57.9514m potato mass - 1.755kg time - 4.94 s Velocity - 48.412 m/s The type of gas that is put into the cannon is butane. Can you give me some pointers on what I need to do to get closer to the goal or at least the variables that are left to find. Thanks! Attached is a sketch of the potato cannon -- Fromwarriors Attached Thumbnails
 Nov 4th 2013, 09:45 AM #2 Senior Member     Join Date: Apr 2008 Location: Bedford, England Posts: 668 Unrecognised Term It might help if you defined Th

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