Recent content by physicophile

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    Calculating the shear force of an impeller on cement mixture

    Please let me know if you need me to clairfiy my post further. I am in a hurry right now to get to work now, so I did not have the time to compose a very good FBD or answer your questions in great detail. Your Help is greatly appreciate. Thanks
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    Calculating the shear force of an impeller on cement mixture

    Please see attached pic for diagram set up and FBD A= Power Drill – Contains a 8.5 AMP motor, No load speed of 3000 RPM. I do not know what the stall torque of the motor, nor do I have a motor toque /speed diagram B= the impeller which is made of stainless steel. It has the following...
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    Calculating the shear force of an impeller on cement mixture

    Yes, you are right. Thanks for pointing that out to me. RPS = revolutions per second
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    Calculating the shear force of an impeller on cement mixture

    Hello All, I have a quick question for you. I have small sample of a cement-like-like-material and I am high shear mixing it using a power drill and a impeller blade. The material is placed a beaker and the impeller blade shears the cement of the bottom of the beaker. I would like to...
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    Undergrad Help with Optics: UVA-340 Lighting & Transmissive Materials

    Thank you very much. I ended up choosing an UV acrylic which is fairly easy to get and dirt cheap compared to Fused Silica...an used acrylic sheet from a broken tanning bed. Thanks again for the help. :)
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    Undergrad Help with Optics: UVA-340 Lighting & Transmissive Materials

    Thank you VERY much. I picked UVA-340 because that is the same wavelength that Q-labs uses in there UV weathering test machines. I need to finish a another report for a different class right now, but i will get back to this soon. Thanks again, very helpful.
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    Undergrad Help with Optics: UVA-340 Lighting & Transmissive Materials

    Hello everyone, I senior working on my undergraduate in ME. I am building a advanced weathering machine for my senior project. I am currently having two problems related to optics 1) For the device I am testing I need to bath it in UVA-340. The lighting on the object must be uniform...
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    Graduate Why do antiparticles annihilate on contact with normal matter?

    Hello, everyone. I have searched google and wiki, but have not been able to find the solution to my question. I was wondering why do antiparticles annihilate on contact with normal matter? If someone could help explain this to me or send me a link on where i can get this information it...
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    Where can I find a template for organizing equations on one sheet?

    Actually yes it is a cheat that the professor said we can use in class. I will look up latex, i have never used it before but have heard its good equations and what not
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    Where can I find a template for organizing equations on one sheet?

    Ok thanks I will try that out. I have the powerpoint slides from the class and rather then writing them out by hand i just wanted to copy and past them. Thanks for the hint, and yes i am using word 2007. Oh and if you are wondering I am taking a powder metallurgy class
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    Where can I find a template for organizing equations on one sheet?

    For one of my engineering class we are allowed to have one sheet of equations. Does anyone know where i can get a word or excel template that can help me orgainze my equations as one would do by hand (i.e. little boxes with titles all over the sheet)
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    How Do You Calculate Stoichiometric Coefficients in Natural Gas Combustion?

    I had a question on how to find the stoichimoteric coefficient in combustion reaction contains several types of natural gas. Lets say for example: u start with a natural gas (using moral analysis) 0.865CO2 + a0.08C3H8 + b0.02C3H8 c0.035N2 + d(O2 + 3.76) ------> eCO2 + fH20 + gN2; Using...
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    Finding the greatest number in each row a matrix

    Hi, everybody. Could some one please help find the greatest number in each row of a matrix, this is what i have so far.. am i one the right track? (using C code) Float big; Big = -9999999.99999 for( i==0) { for( j = 0; j < n; j++) { if( *(mat + (j*0) + 0) > big) { bigc1 =...
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    Graduate How Does Heat Transfer Occur in Neutron Stars?

    Not sure where to put this post, care more about what's happening on atomic scaI le so i put it here. I am currently taking Heat transfer for engineers and we were discussing the mechanicals for heat transfer, conduction, convection, raditation. In class my professor said that conduction is...