Recent content by speg

Hmm.. now that I reread the question, it's asking to show that the speed is Ft/(M+bt)

Ok, I think I might have missed a key point in this class from a few weeks ago but anyways. There is a truck of mass M, who has a constant force F applied to it. The truck is also being filled with coal at a constant rate b kg/s. I'm supposed to find an expression for the velocity of the...

And so F cannot be defined at z=0? So we take that to mean there is no force there?

\frac{d|z|}{dz}=\frac{z}{|z|}?

Hey guys, so I'm back in school after an 8-month break, and I'm feeling a bit rusty :rolleyes: So I've got a flat disc of radius A, with constant density p, in the z=0 plane. I want to calculate the gravitational field at any point up or down the z-axis. I integrated the potential over the...

Thank god! I don't know what happened, it's over already and I feel like I still have to learn everything. With only quantum and calculus exams remaing, I cannot wait until Christmas. Anyway, to make this homework related I was wondering how much time you guys spend on homework. (just...

Hey guys. I'm going into my second year of Physics at Waterloo. First year was... well let's just say it was an "transition" year ;) First time living on my own and all that good stuff... The course work was actually pretty easy - it was mostly a reteaching of high school with a bit more...

Right. F = ma you said the force was constant, we know the mass is constant, thus the acceleration must be constant as well.

The Gmail service ( Googles email service ) is in beta testing. It is not yet open to the public. Therefore the only way to get an account is to be "invited" into the system. Basically Google picked a bunch of people to start with, and then every so often gives them invitations which those...

Aww... I've been trying to get one for weeks now. Anyone else got an invite they can hook me up with?

911? filler

I'm going to try and grab some pics... I think I figured it will be here 7:00AM for east Coast Canada?

Probably becasue not as many people are good with math as you would think. To most of us here I'm sure math comes together quite naturally, but I don't think that a lot of the general population has a very good grasp on ( even basic ) math. Since physics is essentially applied math, that...

Yeah they are more of... entertainment packaged to look like a documentary. I don't watch them expecting a true genuine documentary.

Wow you study that much and your just starting high school? That's impressive. Sometimes it's good to have a dedicated study plan ( I know I wish I did last year ;) ) but you have to have some non-studying fun sometimes. It's all about balance... Maybe you should start out slow, like take a...