Recent content by kosmocomet

  1. K

    Computer Execution Time Problem

    Homework Statement Homework Equations CPU Time= Σ(individual IC time) The Attempt at a Solution What I did was first find the integer time, which is 100=75+X, and X is 25. To find the percent reduced, I did 100(1-x)=75+25(1-0.5). This means x is 0.125 or 12.5 %. Is this correct?
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    Convolution Problem -- Triangular and Rectangular pulses

    Thanks for the help. I think I understand the set up. The issue is when evaluating the integral, I get this: Using the t>1 case, the integral becomes ∫(t-λ)*(1)⋅dλ , where x(t-λ)=(t-λ) and h(λ)=1. This is because the x graph is only valid when λ is between 1 and 0. Since t is between [1,2]...
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    Convolution Problem -- Triangular and Rectangular pulses

    Homework Statement Homework Equations y(t)=x(t)*h(t)=∫x(λ)⋅h(t-λ)⋅dλ The Attempt at a Solution [/B] Is what I have the correct interpretation or or am I wrong? Thanks
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    Solving Magnetic Torque Problems with Unit Vectors: Homework Help

    So I understand how to do the cross product. The problem is I don't know how to define ##\vec m## as an x and y components like B is = Boy(unit vector).
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    Solving Magnetic Torque Problems with Unit Vectors: Homework Help

    Thanks, for the comment. I still am a little confused. The angle between the magnetic field and moment would be 60 degrees correct? If so, how do I apply this for a torque vector
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    Solving Magnetic Torque Problems with Unit Vectors: Homework Help

    Homework Statement Homework Equations m=N*I*A T=m X B m = n(unit vector) *m The Attempt at a Solution To calculate m, I know it is just plugging in the information. Thus, m=0.8. Now, the question is computing the unit vector, which has me confused. Using the right hand rule, and going along...
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    Is the Setup for the Electric Scaler Potential Integral Correct?

    If this is true, would the surface integral be drdΦ or dΦdz? I think it would be drdΦ since it is defined in radial and angular direction. The surface, I mean.
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    Is the Setup for the Electric Scaler Potential Integral Correct?

    Well...I guess not mow that I think about it. Since, the distance would be based on r and z, correct?
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    Is the Setup for the Electric Scaler Potential Integral Correct?

    Thanks for the response. I am using cylindrical coordinates and since the point P is (0,0,z) and the disk is(r,Φ,0) doing the substraction is -r,-Φ,z whcih is the vector R'. The magnitude is then R'=√((-r)2+(-Φ)2+(z)2).
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    Is the Setup for the Electric Scaler Potential Integral Correct?

    Homework Statement Homework Equations V=¼*(1/(π∈) * ∫(ρs/(R')*ds' where R' is distance from point to surface R'=|R-Ri| distance from observation point to location of surface charge density. The Attempt at a Solution So my attempt was to define R' as R'=√((-r)2+(-Φ)2+(z)2). Then I said...
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