Recent content by Carson Birth

Well looking at the the full equation and considering two points, p1+row(gh1)+(row*v1^2)/2= p2+row(gh2)+(row*v2^2)/2. You where using the equation assuming no height difference, but in the equation it says the closed end is higher than the open end. So I think you need to take into account the...

Can confirm, had a question basically identical to this on a homework assignment a couple weeks ago :D:D

http://physics.stackexchange.com/questions/150033/how-does-this-simple-electric-train-work This explains it really nice.

I may be reading this wrong. So the magnet is spinning with 4.95 velocity and producing .08V and 0.01 micro-amperes? Then when you increase the velocity to 6.01 the produced voltage and current is also increased? Isnt that what is expected?

Think about the equation of acceleration, distance/time squared, if the log is moving less distance in the same time then...

If we are saying that force from the block is doubled due to the set up of the double pulley then something has to compensate... the distance moved.

I got nearly the same the answer (rounding error) so that could be a good sign. I treated the force on the double pulley as 2x like you, I am pretty sure that's the way to do it, I could be wrong though. A little tip, I like to break down each force into each direction, form a sum of forces in...

When you say solve the first equation, what do you mean? Would I solve the first equation as a differential equation or you mean solve for a variable then put it into the first equation? :D

My thought was since the thread is being pulled by a force with constant velocity, that it wouldn't be accelerating.

Homework Statement A point mass, sliding over an even, horizontal plane is bounded on an inextensible, massless thread. During the motion, the thread is pulled by a force F with constant velocity ##v_{o} ## through a hole O. In the beginning (##t_{o} ## = 0) r(##t_{o} ##)=b holds (the length...