Recent content by dashkin111

Last bump, I hope someone can help me this time!

So am I right thinking we have to find: f|x-y|(x-y)?

Homework Statement An ambulance travels back and forth, at a constant speed, along a road of length L. At a certain moment of time an accident occurs at a point uniformly distributed on the road. (That is, its distance from one of the fixed ends of the road is uniformly distributed over...

In general, two processes (avalanching and the Zener Process) can cause the breakdown current to occur. The breakdown voltage is also expected to progressively increase changing materials from Ge, to Si, to GaAs. The doping dependence doped below 10^17/cm3 is roughly...

Wouldn't the y(t) = 0 when t <-3 be taken care of by just multiplying that whole thing by a step function u(t+3) y(t) = 1/3[1-e^{-3(t+3)}]u(t+3) ?

Homework Statement Compute the following y(t)=e^{-3t}u(t)\ast u(t+3) Homework Equations u(t) is the unit step function. The Attempt at a Solution I get confused with these for some reason... y(t)= \int^{+\infty}_{-\infty}e^{-3 \tau}u(\tau)u(t-\tau+3)d\tau This is where...

Oh yeah, thanks. But still isn't it trivial to prove scaling for it?

Homework Statement a system has the following property: Its response to a sum of inputs is the sum of its responses to the inputs. (a) Prove that the scaling property holds for any integer scaling factor (b) Prove that the scaling property holds for any rational scaling factor...

Homework Statement Is the following input/output (x is input, y is output) system linear, time invariant, causal, and memoryless? Answer yes or no for each one.Homework Equations y(t)=2x(t)+3The Attempt at a Solution My instinct tells me it's linear, but for some reason I have trouble showing...

Homework Statement We have a series RLC circuit with x(t) as the voltage source. We are to find the frequency response function H(w) from the input x(t) to the output y(t)=Vc(t) - ie the voltage across the capacitor. Homework Equations The Attempt at a Solution My answer...

Homework Statement There's a 100m wide river, with a current of 8.5 m/s going 45 degrees SE. You and a friend are standing directly opposite each other across the river, the friend on the north side, you on the south side. You each get in boats that travel 7 m/s relative to the water and...

Thanks everyone That's inspiring, but I'm the type of person to not think of myself much... I nearly always have put others before myself, which makes it hard for me to do things just for me.

It may seem weird.. but she was kind of my motivation to do good in school..

A few weeks ago I lost my girlfriend whom I dated for over 3 years. She immediately started dating another guy. I haven't been in a happy place since then... and find it extremely hard to motivate myself to do any work, study, or even just get out of bed. I've been getting help for it, but I...

Why did you quote me? :confused: But yes, prereq's/coreqs are there for a reason