Recent content by SweetBabyLou

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    Thermodynamics - Isentropic Compression

    Hello all, Its review time again for another Thermodynamics midterm. As such, I have a practice exam to try for optional extra review work. I've come across a problem that I'm somewhat stumped on. I've tried the problem, but I feel as though I've made too many assumptions in trying to solve...
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    Chemical Engineering Computation - Rectangular Matrix Formulation

    Thanks for the reply, SteamKing I took a look at the link you posted. It was highly informative... however, I knew that the matrix was made up as a summation of the data values posted. I just realized that I had addressed the wrong concerns I had with this problem. I apologize for dragging...
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    Chemical Engineering Computation - Rectangular Matrix Formulation

    Hello all, I've got a somewhat mixed concept question from a Chemical Engineering computational methods class. I'm completely lost with this question, as I do not fully understand what it entails. The question (and data) is this: Homework Statement Data Set Given X Y 0.00 -2.17...
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    Thermodynamics Closed System Energy Balance

    Hi everyone, I am currently reviewing for a thermodynamics exam and have come across a difficult problem while studying. Here it is: An insulated tank containing helium, a monatomic gas, at P1t = 1000kPa and T1 = 800K is connected to an initially evacuated insulated piston-cylinder device...
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    Multivariable Chain Rule of sin(x)cos(2y)

    Hi SammyS, I'm sorry, but I'm not really familiar with Angle Addition Identities (It is probably something I've learned, but has slipped my mind). I did, however, look it up on the friendly neighborhood Google, and saw in Wolfram Alpha's MathWorld, that if I had sin(a+b) (or in this case, s+t)...
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    Multivariable Chain Rule of sin(x)cos(2y)

    Hi all, I've got a Calculus III Question Homework Statement Find the derivative zs and zt, where z=sin(x)cos(2y)Homework Equations x=s+t y=s-t The Attempt at a Solution I had a go at the solution and this was what I ended up getting for zs, I ended up getting (cosxcos2y)(1)-2sinxsin2y(1)...
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