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13 Dec 2019
1. y''+5y'+6y=12t+46y??+5y?+6y=12t+46
y(0)=13, y'(0)=?16y(0)=13, y?(0)=-16
2. Suppose the equation x''+169x=f(t)x??+169x=f(t) models a spring-mass system with forcing function f(t)f(t). Choose all possible forcing functions that would cause resonance in the system.
f(t)=9sin(169t)f(t)=9sin(169t)
f(t)=15cos(13t)f(t)=15cos(13t)
f(t)=2cos(169t)+15sin(169t)f(t)=2cos(169t)+15sin(169t)
f(t)=11cos(169t)f(t)=11cos(169t)
f(t)=14sin(13t)f(t)=14sin(13t)
f(t)=17cos(2t)f(t)=17cos(2t)
f(t)=10sin(2t)f(t)=10sin(2t)
f(t)=9sin(13t)?11cos(13t)
1. y''+5y'+6y=12t+46y??+5y?+6y=12t+46
y(0)=13, y'(0)=?16y(0)=13, y?(0)=-16
2. Suppose the equation x''+169x=f(t)x??+169x=f(t) models a spring-mass system with forcing function f(t)f(t). Choose all possible forcing functions that would cause resonance in the system.
f(t)=9sin(169t)f(t)=9sin(169t)
f(t)=15cos(13t)f(t)=15cos(13t)
f(t)=2cos(169t)+15sin(169t)f(t)=2cos(169t)+15sin(169t)
f(t)=11cos(169t)f(t)=11cos(169t)
f(t)=14sin(13t)f(t)=14sin(13t)
f(t)=17cos(2t)f(t)=17cos(2t)
f(t)=10sin(2t)f(t)=10sin(2t)
f(t)=9sin(13t)?11cos(13t)
13 Mar 2023
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