Recent content by pnazari

At my high school (in Canada) we only used numerical system, and a fail was <50% (which is the same at my current university).

I was wondering if someone can give me some tips for finding the taylor series of functions. For example this was a test question we had: Find the taylor series of f(x)=ln(x) about x=e I know how to start it off but I get confused halfway through and can't seem to figure out what to do...

Here at McMaster 1st year ENG is general and then in second year you specialize (Elec, Mech, Materials etc).

yep...u can always check by deriving the answer and see if you get the original function.

Try substituting u=x^1/2... oops...beat to the punch...

4/(e^x - 2)^2 That was a test question that I had tonight...solutions won't be up for a while, wondering how to approach it. I thought of expanding the bottom bracket, then multiplying by (e^x)/(e^x), substituting u=e^x and then using partial fractions...not sure if it is right, thanks in...

So then if the photon is just energy traveling at c, and since energy and matter are interchangeable, then why is it that matter can't travel at c? That was my original question. If I understand what you said previously, it is because the photon has zero rest mass?

What I mean is that if photon has energy and it is traveling at c then it's energy is also traveling at c...i don't even know if this is a valid statement...

Ok I have some general questions about mass and energy. I was wondering if photons have any energy themselves? And if they do, why is it that energy can travel at the speed of light but mass can not (ie, if they are interchangeable why can't mass travel at light speed). Thanks for your time.

A student diving in a swimming pool (filled with water with index of refraction 1.33) creates thin films of air. Viewed underwater, what are the first two non-zero thicknesses of an air film for which there will be constructive interference for reflection off the surfaces of the bubble for...