I am currently studying Physics BS in UK, I just finished my third year and planning to apply for Ms/PhD programs in USA or Canada.
I think all that is relevant about me when applying:
I work hard at school, have mostly A's and likely to graduate with 1'st class degree, I think I'm somewhere...
Hello, I would like to ask a few questions regarding funding in grad school for physics (and maybe for other fields).
I know that tuition fees are quite large in grad school, but most of the time (if not always) they are being covered by the school. People who receive funding from school has...
Let say we have charged conductor M and we know its potential energy function Vm(r) when M is isolated from any charges. We also have charged conductor N with potential energy function Vn(r) when it is isolated.
Now we put objects M and N close together, the charges on their surfaces...
I found this problem in the book and the exact problem is not important, but I don't understand the picture. Book claims that after voltage source is disconnected and switch closed these capacitors in picture are parallel although I tend to think they are in series. (I agree they are in parallel...
The wave on the string could be described with wave equation.
Wave equation has a factor v^2 = Tension/linear density.
It has dimensions of speed, but from where exactly does it follow that this is actually speed of propagation of the wave?
Under a change of variable x = pa/h:
\frac{\hbar}{a}\int_{-\infty}^\infty \frac{sin^2 x}{x^2}dx
As suggested you can apply integration by parts and then sine double angle rule to obtain
\frac{\hbar}{a}\int_{-\infty}^\infty \frac{sin(2x)}{x}dx
The integral below has many different...
What about:
sin^2n=1-cos^2 n = 1-\frac{1}{1+tan^2 n}=\frac{tan^2 n}{1 + tan^2 n}=\frac{1}{1+\frac{1}{λ}}
Where λ=tan (n)
And \lim_{n\to\infty}sin(n)^n=\lim_{n\to\infty}(\frac{1}{1+\frac{1}{λ}})^{n/2}
Homework Statement
Consider two twins, Joe and Ed. Joe goes off in a straight line traveling at speed of 24/25 c for 7 years as measured on his clock, then reverses and returns at half the speed. Ed remains at home.
Homework Equations
What is the age difference between twins after return...
Of course! Thank you for the answer, it is much clearer to me.
EDIT: Sorry, I somehow managed to add word "not" into a sentence. Every time I read what you wrote, it gets more and more clear to me (maybe because you edit and add something new every time :))
"light cone of p1 does not contain...
I am having difficulties understanding some lines in the book.
"An event can be later than another spacelike separated event in one inertial frame and earlier in another."
So for example let's take the thought experiment where lighting strikes two sides of the train, and observers in...
I would assume that the reason free fall acceleration is so deviated is that the experiment was performed using large angles of swinging, up to about 15 degrees should have been good enough.
You could include that the length of the pendulum may not have been measured precisely, also the...
According to Newton's 2nd law we know that when the force of magnitude F act's upon an object of mass m it causes a body to accelerate at a. F=ma, in case of the gravitational force with is F=G\frac{mM}{r^2} it is usual to denote this acceleration g so:
F=mg=G\frac{mM}{r^2}, dividing by mass...