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.

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.

Hey, I just finished my first year at UW as a Physics Major. I think the others were all correct in saying that your undergrad doesn't really matter, they all teach the same material more or less. In fact first year was mostly a review and relearning of high school. I still think UW is one of...

Was that sarcastic? :P

Those are the forces acting on the block on the plane. F=ma The forces are: ( with + up the incline, - down the inclline ): +Tension from the rope -(mu)*N this is the force of friction -mgsin45 this is the force of gravity I've been reviewing these kind of problems this...