Recent content by Liquidxlax

He is talking about expanding the equation in a taylor series around the minimum example y(x) = sqrt(a^2-x^2) ; for x<<1 y(x) = sqrt(1 -(x/a)^2) ~ 1- (1/2)*(x/a)^2 and this would be to first order

yeah it does go from 1 to 3k, not 1 to k because it needs to be for part b equal to 3n(108n^2 +36n +1) Where i was stuck was knowing the bounds

Homework Statement (5^2) + (11^2) + (17^2) +...+ (18n-1)^2 a)Write the sum in sigma notation b)Using the sigma identities solve the sum (easy to do)Homework Equations ∑i = .5*k*(k+1) etc The Attempt at a Solution The problem I'm having is with the 25 and 121. I thought it was ∑ (6n-1)^2...

Homework Statement γ + p → Δ+ → πo + p incident photon with energy 0.34 GeV excites a photon into Δ+ which decays into πo + p Write down and apply the laws of conservation of energy and momentum to show taht the peak photon energy of 0.34 GeV is consistent with Δ+ mass of 1.23 GeV...

I don't see how the buoyant force on the Styrofoam would be the same as the lead since they may be the same size, but their densities are far different and the equation is ρsub/ρfluid = msub/mfluid ρst<<ρPb and for c) he is right because the boat is not being held at the same depth in salt...

best way i found to find the charge of an electron is to plot a your drop charge vs the drop number, and you should be able to see a step difference of ~ 1.6x10^-19 C If you have done an adequate amount of drops you should have multiple sitting on each line. Hopefully your drops all 10 or less...

i would start out with a diagram, showing the angle and x and y velocities. it makes the trig much easier

Your Madelung equation doesn't seem familiar to me, what textbook are you using?

and how do you find J {current density} from I {current} and a circumference?

I can't tell 100% what you've actually done. I'd have to say this isn't correct considering it looks like you've neglected the rest of the capacitor after the dielectric was inserted. What it looks like to me is that you'll need to break down the capacitor into what looks like 3 partsThe part...

it's all right i figured it out

Homework Statement I have a question given to me by my prof that is a time dependent Hamiltonian H(q,p,t) = g(t)(p2/(2m) + kq2/2) where f(t) has 2 different forms i need to solve 1) eat 2) cos(gt) problem is goldstein only covers conserved hamiltonians in chapter 10 for the H-J...

yeah that generating function doesn't make sense. It should be F(q,Q) F(p,Q) it has to be a function of two variables which connect the transformation Which the given does not

you're a life savior man, thanks alot

Any know a way I could find out the Earth's field in the city I live in. I ask this because I have performed the charge to mass ratio experiment and my prof said it would be nice to compare the field i found for the Earth and the actual field recorded by some institute. I can find...