Recent content by Rian199

Hey guys, I am trying to come up with an idea to measure incident intensity of headlights from an oncoming car for one of my uni projects. This wasn't specifically assigned project topic, we get to choose what we want to do. It's my Instrument and Measurement unit, and I had this idea thought it...

So this is what I got. Did both part 1 and 2 (See attached file), I am just unsure regarding Part 3 still?

Gotchya! Yea sorry I misspoke, and I realized after posting that the undamped condition is unbounded and will go to infinity without the dampener in the improved case. I'll have a further crack at it and post back afterwards.

Also, in that case the homog soln is: assuming y(t) = eλt: y''(t) = λ2eλt thus λ2eλt + ω02eλt = 0 λ = ±iω0?

Also, for the characteristic equation, even though it's non-homogeneous, is that just referring to the characteristic equation of the homogeneous variant when your finding the solution to the complimentary solution (DC)?

Thanks for the advice regarding posting. Well for the DE, I just proved it using a FBD, and I'm confident the actual DE is solid. I then asumed: h(t) = F0cos(ωt) ω ≡ Forcing frequency ω0 ≡ Natural Frequency of the system F0 ≡ Amplitude of the base excitation I took the laplace transform of...

Homework Statement I am a little stuck/unsure in an homework question for my signals and systems course. See question sheet attached. I have been able to do question 1 for the first section using FBD, and I have solved the DE using Laplace Transforms (See below for my solution). I am both...

Thanks, I'm not sure if that is what I supposed to do (post that post ha), just seemed like that was what the prompts asked for in the first welcome message

Thanks Chet, that makes sense, thank you for the concise explanation

Hi, I have a feeling Luchekv and I are both Thermo students at the same uni cause I've got the exact same question in my assignment. I get everything except why we don't subtract the 10W of the fan from the initial 90W, since that is being converted to mechanical energy, and not heating energy...

BEng Naval Architecture Student. Love for all aspects of physics and mathematics=(though maybe not so much electrical, but its good as long as it applies to what I'm doing :p ha). Would be great to get invoved in this forum since others's questions have already helped me a lot in some of my own...