If I'll shove a bicycle down the road, without even being on it, it will go on perfectly without crashing, until it will reach to a minimal speed and then crash. Why is that? why can't we balance an imobile bicycle? A lot say it has to do with the gyroscopic effect but my physics professor said...
Homework Statement
A rectangular loop moves with constant speed v towards an area in space with constant magnetic field B (As shown in the attachment). The loop enters this area and leaves it from the other side. Also given: d>c. Assume that t=0 when the left edge of the loop is just on the...
I don't think it's a typo...
Can you explain me what happens in this exercise step by step?
1. We started with 0.1M of the tricine buffer... well what does this mean exactly? why is it correct to conclude from this sentence that tricine+ is 0.1M at first? and what "at first" really means...
Why not? If x molecules of tricine+ were deprotonated until equillibrium, then x molecules of tricine0 were formed and also x molecules of H3O+ were formed also during this process (as indicated in the attachment I uploaded, which was done by the teacher). How is this different from "normal"...
What do you mean by "there was no reason to expact that [tricine0] = [H3O+]??
I'm attaching the solution from the presentation as it was given to us in class. As you can see - X stands for [H+] and [tricine0] at equillibrium, while 0.1-X stands for [tricine+] at equillibrium.
According to...
Homework Statement
We have the buffer Tricine 0.1M and pKa=8.15 and the pH=8.8
Homework Equations
what are the molar conc. of tricine+ (the protonated form of tricine) and tricine0 (the deprotonated form of tricine)?
The Attempt at a Solution
Well, if you go to henderson-hassalbach...
I don't understand how what you are saying explains why I can't do the analysis I've done. Maybe I didn't explain well enough what I tried to do here:
I said that the two points on the wire that, for every moment, lay on the x and y axis, and so - make up the two legs of the right triangle (one...
A conducting wire slides with constant speed of 1 m/s on a bent L shaped metalic rail. The angke between the wire and the rail is 45 deg and it remains constant during the whole motion of the wire. Perpendicular to the plane of the rail acts a magnetic field B=0.2 T in the X direction (Into the...
Let dA be positive in the \otimes direction:
1. from t=0 to t=a/v the loop moves through the wire to the right - let ∅_{L}(t) be the flux from the left (bounded by the loop's left edge and the wire) and let ∅_{R}(t) be the flux from the right (bounded by the wire and the loop's right edge)...
That's true also :)
But I thought from their solution next to the question that a single expression represents the flux at any given time, and now I understand it only represents the flux from t=0 to t=the moment the entire loop passes to the right of the wire.
I'll write my calculations...
Well something still bothers me - if I integrate for the right part from 0 to vt, and we know that the position of the right and left edges of the loop changes according to time - won't we get that for a moment in which the left edge of the loop is a distance 2m from the wire (for example), we...