Recent content by davegillmour

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    Signals and Systems example problems?

    Are there any resources on the web that provide example problems (with solutions) to Signals problems? My textbook (shown below) lacks any clear example problems (shows answers without showing you how to get them). If someone could point me toward examples of Convolution, Fourier series, or...
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    Solving Separable Equations: How to Solve for Y in Terms of X

    So would the expression x^3 + 2x^2 +2x + 3 be treated as the 'c' value in the quadratic eq?
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    Solving Separable Equations: How to Solve for Y in Terms of X

    Ok, I'm having trouble with the last part of this problem. After solving for the constant C, I get: y^2 - 2y = x^3 + 2x^2 +2x + 3 My question is, how do I solve this in terms of Y? The only instruction my book gives me is "To obtain the solution explicitly we must solve for y in terms of x...
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    LC Circuit Oscillations: Check My Work and Find Energy and Frequency Details

    I'm not too confident in my work for this problem, so I was wondering if someone could check it over for me. Consider a circuit with 4 elements, C1=100micro farads, C2=50micro farads, L1=20mH, and L2=10mH. At t=0, the capacitors are charged with Q=0.01 Coulomb. There is initially no current...
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    Damped Simple Harmonic Motion problem

    a) I know that k=mw^2 but don't know where I can get w from. b)Xe^(-bt/2m)= .65X which breaks down to b=(-2m*ln(.65))/t but I don't know how/if I can't get a t. Is there something I'm not seeing or am I totally off in my approach? Any help is appriciated
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    Calculating Frequency, Wavelength, and Tension of a Sinusoidal Wave on a String

    Yeah, after I triple checked my units, I realized they were wrong again. Got the correct answer of 0.266 Newtons. Thanks for the reply
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    Calculating Frequency, Wavelength, and Tension of a Sinusoidal Wave on a String

    I've been working on this problem and I got every part right except part F which asks for tension. A sinusoidal wave is traveling on a string with speed 110 cm/s. The displacement of the particles of the string at x = 23 cm is found to vary with time according to the equation y = (4.9 cm)...
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    Damped Simple Harmonic Motion problem

    I'm having trouble with this problem.The suspension system of a 2100 kg automobile "sags" 7.2 cm when the chassis is placed on it. Also, the oscillation amplitude decreases by 35% each cycle. Estimate the values of (a) the spring constant k and (b) the damping constant b for the spring and shock...
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