Recent content by tristan_fc

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    Question on adiabatic expansion

    Oh duh. Sorry, I guess I was just really tired last night. ;) Anyway thanks for the help.
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    Question on adiabatic expansion

    Okay, I thought maybe that's what you meant, but I'm sorry I don't see what good that does if I don't know what k is. Maybe I'm just slow tonight as I only got about 4 hours of sleep last night and am rather tired... Sorry. [zz)] Ah well, it was due at midnight. So I'll just ask my teacher...
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    Question on adiabatic expansion

    eh... P from above what? P is not constant.
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    Question on adiabatic expansion

    so what is the proper formula? The textbook goes through a proof of why PV^y is constanst, but doesn't really go any further from that... I'm guessing that's somehow incorperated into the formula...
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    Question on adiabatic expansion

    I've been struggling with this problem for an hour or so now, and can't seem to find the right answer. Perhaps someone here can help? I would be very grateful. ;) Two moles of an ideal gas ( = 1.40) expands slowly and adiabatically from a pressure of 5.09 atm and a volume of 12.7 L to a...
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    Solving a Seismic Mystery: Calculating Epicenter Distance

    Thanks I knew it had something to do with that formula, and I figured it out. change in time = d/v1 - d/v2. :)
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    Solving a Seismic Mystery: Calculating Epicenter Distance

    It seems to me that this is just a simple algebra problem, that doesn't have much to do with waves, but it's the only problem on the homework that I can't figure out. :-/ I know there's an easy solution to it, but I keep getting the wrong answer. Anyway, here it goes: A seismographic station...
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    What is the energy lost due to friction?

    Well that's what I said. I figured it out though. I remembered that you have to use tangent. Thanks though. :)
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    What is the energy lost due to friction?

    Okay, I have this problem I've been fighting with for a couple of hours now. I have the answers for it, but I can't figure out how they're the answers. Here's the problem: A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at constant speed by a rope. The rope is inclined...
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    Question regarding tension and friction

    Okay, well I've been working on this assignment forever now, and I have it all correct, but one last bit. Here's the problem. Two blocks connected by a rope of negligible mass are being dragged by a horizontal force F. Suppose that F = 66.0 N, m1 = 10.0 kg, m2 = 20.0 kg, and the coefficient...
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    Solving a Tension Problem with 9 kg Handing Weight & 5 kg Block

    eh... I posted my question in the wrong section and they moved it here. I'm actually in Engineering Physics I in college, but I guess it doesn't matter where the question is if I get help.
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    Solving a Tension Problem with 9 kg Handing Weight & 5 kg Block

    I believe that I was late the day my instructor explained this type of problem in class, and my textbook is worthless, so I thought I would give this a shot. It's just a tension problem, but I don't know for sure how to do it. A 9.00 kg handing weight is connected by a string over a pulley to...
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