Homework Statement
I have to answer a few questions about a lab session I did (university) and I'm really stuck with this one.
The objective of the lab session was to find the self inductance (L) of a solenoid.
In order to do that, I had a function generator exciting a solenoid with a high...
If in a non-quasistatic process the pressure is constant, is the work necessarily equal to cero?
I have from the notes taken in class that it must be 0, but I don't really see why, so I'm not sure whether maybe I didn't hear it well.
I haven't really started to work with non-quasistatic...
Well, actually it could never be a short circuit beacuse the voltimeter has a very high resistance, right? So there is a current and the voltimeter would read 0?
:confused::confused:
My doubt is about the circuit in the picture. The capacitor is charged ans the switch open. There's a voltimeter connected to the terminals of the capacitor.
Does a current flow through the wires of the voltimeter causing a short circuit? If not, what would happen in the circuit described...
Solved
I'm uploading the solution (although it's a simple problem), in case somebody that got stuck with something similar finds it useful in the future.
:) This forum is awesome
Thank you very much, you two! I got confused because of how I tried to solve it at first. I did it and obtained μ=0.34, which makes a lot of sense. Your help was very useful!
Thanks Shyan, I have a doubt: what I'm trying to apply is that the work of non.conservative forces is the variation of kinetic energy. So, why should I add gravitation to my equation if gravitation is a conservative and is not responsible of the variation of KE?
Thanks, Nasu. So I now write the work-energy theorem for the up and the down motion separately:
up motion:
down motion:
But I can't solve for any of the unknown variables s and μ with these two equations.. What am I doing wrong?
A 20 Kg. mass slides up on an infinitely long inclined plane (that forms an angle of 30º with the horizontal) with a velocity of 12 m/s. It's known that the mass returns to the starting point with a velocity of 6 m/s. Find,μ, the coefficient of friction between the plane and the body.
This is...