Recent content by RMZ

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    MATLAB Interpolating a zoomed in colorscale image in Matlab

    Found it... apparently I needed to use newData = uint8(newData) before doing imagesc(newData). Not sure why at the moment (I had already tried using floor and ceiling functions to change the newData array values to integers).
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    MATLAB Interpolating a zoomed in colorscale image in Matlab

    I have no idea what I am doing wrong. I have already found multiple places on the internet which give clear examples of how to do this, yet I am still struggling. Please help me out, or at least point me somewhere. My code is below. I am trying to interpolate pixels of a full color image. The...
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    Finding Zero Power at Inductor Terminals

    Wow. I am not sure why the v(0) yields 15 and i(0) = .3. i think it may have to do with the fact that there is a disconinuity in the current equation at t = 0, but my head hurts too much at this point to ponder it further. I am going to leave it alone for a few hours.
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    Finding Zero Power at Inductor Terminals

    I treated i(t) as the general solution to a differential equation, with the initial conditions i(0) = .120A and Li'(0) = 3V. Using this approach i solved for A1 and A2. I then used this solution in v = L(di/dt) to find the expression or the voltage
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    Finding Zero Power at Inductor Terminals

    I arrived at P = -e-4000t-2.5e-2500t-e-1000t
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    Finding Zero Power at Inductor Terminals

    Im sorry it will no let me edit the problem. the expression for voltage is supposed to contain e-2000t rather than e2000t
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    Finding Zero Power at Inductor Terminals

    Yes, there is no information missing. P = VI = Li(di/dt)
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    Finding Zero Power at Inductor Terminals

    I have no clue what to do. It did not give me a resistor value or capacitor value or anything like that.
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    Finding Zero Power at Inductor Terminals

    Nothing has panned out..
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    Finding Zero Power at Inductor Terminals

    Just reread your advice. I will try that too
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    Finding Zero Power at Inductor Terminals

    Thanks both of you. I am following your advice as best i can: I am trying to imagine that it is an inductor-resistor circuit, and using the initial conditions the problem gave [v(0) = 3V and i(0) = .12 A], I am trying to see if i can simulate the circuit it is in using a voltage source and a...
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    Finding Zero Power at Inductor Terminals

    Homework Statement Find the time, greater than zero, when the power at the terminals of the inductor is zero. i(t) = .20e-500t + .1e-2000t A v(t) = -5e-500t-10e2000t V L = .050 H v( Homework Equations P=VI The Attempt at a Solution It seems to me to be impossible to find a finite time to enter...
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    How Does an Accelerating Charge Produce Electromagnetic Pulses?

    Homework Statement This is not an assigned question, I am very confused regarding how light travels. are all of the following parts of my explanation correct? Consider a charge which undergoes an acceleration for a finite amount of time. This results in an electromagnetic pulse that propagates...
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    Gaussian surface surrounding only a proton inside a conductor

    Ok. I understand that I may need to complete more courses before fully understanding why this is the case, but can someone please post some sort of explanation as to why Gauss's law isn't working at this level? I understand the reasoning behind gauss's law, and I just don't see why it should not...
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    Gaussian surface surrounding only a proton inside a conductor

    So should I think about the charge in a conductor in this case almost like a fluid (like franklin)?
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