Hello,
You've probably already seen sites about "LED throwies" which are little circuits made of
An LED
A small 3V watch battery
A Magnet
Some Tape
The idea is that you make these and then stick them to different things and the glow and are pretty.
Anyway, with that background...
1. Homework Statement
\frac{dx}{dt} = \sqrt{2(\frac{E}{m}) -\omega^2 x^2}
2. Homework Equations
\frac{dx}{dt} = v
3. The Attempt at a Solution
I keep ending up with the statement x=0.
\frac{dx}{dt}=\sqrt{2\frac{E}{m} -\omega^2 x^2}
Then
(dx/dt)^2 =2\frac{E}{m}...
1. Homework Statement
I'm really bad at these type of problems. I'm supposed to find the monopole moment of this continuous charge distribution. its charge is
\sigma = const*cos(\theta)
2. Homework Equations
p = \int r'\rho(r')d\tau
which then since we are doing a surface charge...
1. Homework Statement
Show that the de Broglie wavelength of an electron of kinetic energy E (eV) is
\lambda = \frac{12.3*10^{-8}}{E^{1/2}}
2. Homework Equations
\lambda = \frac{h}{p}
E = \frac{p^2}{2m}
3. The Attempt at a Solution
I've played around with substituting and things like...
Hello,
I don't know if this is general math or not, but I know it is a simple question that I just don't get so I put it in this forum.
I'm kinda rusty at this, but I came across an equation in a book on wavelets that uses the notation
| f(t) |
inside an integral and I"m not sure...
1. Homework Statement
Basically I bought a new 7200 rpm hard drive and I was curious about it since it is a 2.5 inch notebook hard drive. What I was wondering was how many g's were pulled at the edge of the disk while it spun at 7200 rpm
2. Homework Equations
\frac{v^{2}}{r}
I'm...
something has always bothered me about nand flip flops and their use in memory so I thought I would ask this here and get it cleared up.
In a basic nand flip flop like the one found here:
http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/nandlatch.html#c1"
I understand that there is a...
So I was googling around and I happen to see several references to MOND theory, Modified Newtonian Dynamics.
Anyway, it proposes that there is this other new constant a_{0} that is a very very very low acceleration that exists. Basically, as far as I can tell so far the whole idea is that...