Recent content by Matt atkinson

I've actually just figured it out I am very sorry!

Sorry i'll do that now! its more the issue of angles I'm struggling with for the maximum value. I found a helpful page on the inverse compton scattering which led me to derive the following equations (electron rest frame is the primed variables): The energy of the final photon in the rest frame...

Hello all, I'm just doing some practice for an upcoming exam and came upon this question in my notes: One experimental way to generate very high energy photons is to ”collide” a laser beam against an electron beam, the photons that recoil in the direction parallel to the electron beam will have...

Thank you for the help guys! sorry for the late reply I had internet issues and had to go see an old professor to sort it out he suggest pretty much the same thing as you donpacino so thankyou!

I have been struggling to solve the following problem for days. I was given the state space model of a circuit and asked to determine the system elements. So basically, I think I have to find a suitable circuit which describes the state space equation. I am not really sure how to approach this...

Okay thankyou! ill give it a try now, i did have attempt at doing each on their own it gave a strange result so ill try taking the average.

Ah okay thank you, I have just been given numbers and no correlation and been told to make an assumption. So I should say that if i assume the correlation between systematic uncertainties is small. So to work that out, let's say I have: 76.9^{+3.9+10}_{-3.4-8} 66^{+11+9}_{-10-8} How would I go...

Homework Statement I am just looking through some old notes I have from for cosmology, and there's something cropped up that i can't seem to figure out: Say I have two (or more) values for H_o each with errors such as: H_{o_1}=70^{+a+b}_{-c-d} and H_{o_2}=69^{+e+f}_{-g-h} How would I go...

I do have equations for those terms, I was just curious which way was best to approach given my situation where I'm trying to stay at a constant cycle speed. Thankyou, it works out better this way! Yeah I haven't got that far yet, I've just been roughing out some physics first thanks for the...

Oh that does, I didn't think of it like that! So if we are traveling at a set speed (constant) say 40kmph for both the motor + rider contributions it would be better to work the power out using the second method i mentioned by working out the sum of the forces acting on the bike?

So I'm just doing a project where i have a electrically assisted bicycle and I am struggling working out the power when the bike is going uphill. If i have a certain force provided by the rider, and a force provided by an electrical motor; can I do Power=F_{motor}* v_{motor}+F_{rider}*v_{rider}...

Thankyou so much! I managed to get the answer now, i think it was just the fact i hadn't noticed that it was a standard integral.

Ah okay, I did just try u=cos(\theta) but it gives: \int \frac{du}{\sqrt{c(1-u^2)-1/2}} It didn't prove to be any easier to solve. Also tired doing u=cos(\theta) from the beginning just now as you suggested in the other post (although this could be the wrong substitution) and I must be doing...

Homework Statement By finding the Lagrangian and using the metric: \left(\begin{array}{cc}R^2&0\\0&R^2sin^2(\theta)\end{array}\right) show that: \theta (t)=arccos(\sqrt{1-\frac{A^2}{\omega^2}}cos(\omega t +\theta_o)) Homework EquationsThe Attempt at a Solution So I got the lagrangian to be...

Homework Statement Consider the following experiment: Alice and Bob each blindly draw a marble from a vase that contains one black and one white marble. Let’s call the state of the write marble |0〉 and the state of the black marble |1〉. Consider what the state of Bob’s marble is when Alice...