Recent content by dranger35

Wait ... is the answer just E'/E = mc^2/(2E + mc^2) or mc^2/(2E + mc^2) (1- cos@).

What is the recoil energy (in eV) of a 57Co nucleus emitting a 14.4 keV gamma ray? If anyone knows the equation that I can use, thanks.

From the Comptom Scattering formula, you get (E-E')/E E' = (1/mc^2)(1-cos@). Can someone tell me how you could find E'/E at the min of 180 degrees. I've tried using the conjugate, and other methods, but I can't get E'/E out of it. I must be doing something wrong. Thanks.

Wait What did you mean by frac in the beginning of the equation and tex in tha last part.?

I have a question concerning the eye but I need to know how many diopters of adjustment an adult eye has? I've been looking online a lot but can't find what the answer is. Please help.

Ok Thanks a lot I needed it

I haven't done a probability problem in a long time. Thank you. Assume that 8 % of the students fall in some particular category. We have 20 students in our class. What is the probability that we have 0, 1, 2, 3, 4, 5, or 6 of those students in our class?

Yea that's the problem, there is no book for the class so we have to get it from our heads and the teacher for some reason is expecting us to know it.

Yea but how do I know the F if I don't know q or E? Thanks again, I'm really confused with it.

I was given this problem for homework. Assume you have a television tube that is about 0.3 m from cathode to screen, and electrons are accelerated uniformly through 20 kV – the electric field is constant. How long does it take for the electrons to travel from the cathode to the screen...

I was given this problem, but I don't know where to start? R(v) = dE/dv = (8(pie)(h)(v^3)/ (c^3(e^(hv/kT-1))). Recall that if you want the energy per unit wavelength, you cannot simply replace the argument v with c/wavelength. Instead you must write R(wavelength) = dE/dv = (dE/dv)(dv/d...

Hey I was given 3 problems for homework, I just need help on some and the others I want to make sure i did it right. Problem 1: What is gamma for an object with speed B = 0.1? Problem 2: You are at rest, and see me as moving with a speed of B = 0.05. I see a car moving with a speed of B =...

Thanks Hey thanks a lot for giving me some insight into the problem. I wasnt sure where to start.

Need Help 2 problems! Homework Problem 1: You are starting out a race to go from point A to point B, and then back. You have to stop on your return to point A. The initial mass of your rocket is 80% fuel. Racer 1, who is not as smart as you and is not taking this class, plans to use ¼ of...