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FAQ (Frequently Asked Questions)
Category:
CDS 101/110 Fall 2004
Identifiers: H0 H1 H2 H3 H4 H5 H6 H7 H8 L0.0 L1.1 L1.2 L2.1 L2.2 L2.3 L3.1 L3.2 L4.1 L4.2 L5.1 L5.2 L6.1 L7.1 L9.1
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For problem 4 parts b and c, do we need to solve the equations analytically?
Submitted by: waydo
Submitted on: October 12, 2004
Identifier:
H3
Yes. You should solve them analytically (leaving variables as variables), then plug in the given parameters for the purposes of plotting. For (a), you can plug in the initial conditions from the start, but leave zeta and omega as variables. It's OK to take A = 1 for the forcing, since what you're plotting in the end is the ratio of the amplitude of the motion to the amplitude of the driving.
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Is problem 3b supposed to read m/s?
Submitted by: haomiao
Submitted on: October 14, 2004
Identifier:
H3
Only if you're working on the set in a godless red commie country that doesn't use proper English units like hogsheads, slugs, and furlongs. For the rest of us, we'll stick to our good ol' MPH to be consistent with 3a.
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For 4c, how do we solve the equation with no given form for v(t)?
Submitted by: asa
Submitted on: October 18, 2004
Identifier:
H3
When we say to "compute the frequency response of" a system, what we mean is that you should put in a sinusoidal input (such as v(t) = A sin (wt)) and see how the amplitude and phase depend on the frequency of the driving.
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