I can rewrite that equation with brackets
(E)^2 = (pc)^2 + (mc^2)^2
tells me that E must always be greater than pc, where p = |p|. This is ONLY true if m is non-zero, because if m = 0, then E = pc.
So, in my final equation, have
2(E+)(E-) + C = 2(p+)(p-)cosx where C = (mc^2)^2...
ok, I think I finally got what you are saying. Its making sense. The picture is forming correctly for me now. I tried balancing equations and one last question remains though:
When you guys let c = 1 in E^2 = p^2*c^2 + m^2*c^4, could I be able to show that E^2 is always larger than p^2*c^2...
Thanks, that rest term should not be there. I think I understand some part of the Meir's post now. Here's the way I understand it...my question is at the end:
E^2 = p^2 c^2 + M^2 c^4, where M = m[0]
let c = 1
I can see that it must hold for the conservation to be valid. Just to...
For both energy and momentum, I have moving photon + Rest term = sum of 2 energies + rest term.
Perhaps, I need to back up: What does the earlier post mean physically when the following is said:
"For a photon, E^2-P^2=0.
For any number of massive particles, E^2-P^2>0."
What is the...
Perhaps I;'m not correctly understanding what is physically going on. I can see that |p(photon)|=E(photon), so that part is fine. But I am confused about the other two equations:
|p(e+)|<E(e+)
|p(e-)|<E(e-)
How do they come about in relation to this problem? Also, why does...
Are you saying that because E^2 + p^2*c^2 = m^2*c^4? This way since m^2*c^4 is always greater than zero, the left side must always be non zero. But , how does this show the connection to interaction?
Also, I should calrify my equation:
Conservation of Energy
E(photon) + m*c^2 = E(photon')...
1. Homework Statement
Is it possible for pair production to occur without interacting mwith matter?
2. Homework Equations
E+ + E- = E(gamma) - 2*m_e*c^2
3. The Attempt at a Solution
In the Coulomb field of nucleus (or electron), the incident photon energy can be converted to...
1. Homework Statement
Solve the following to the proper number of significant figures:
a) A loaded truck has mass (2.12 X 10^4 +/- 6 X 10^2) kg and when empty, it has a mass of (1.72 X 10^4 +/- 5 X 10^2) kg. What is the relative uncertainty of the mass of the gravel dumped from the...
Near "Normalization" calculation for given wavefunction
1. Homework Statement
A wave function is given by Y(E) = CEexp(-E/kt)
1. Find C so that Y(E) becomes Y0 where Y0 is a constant.
2. Calculate the mean energy with respect to Y(E).
3. Find Y(t) as a function of wavelength...
Exactly! I would highly recommend speaking the professor as each University/College teaches different material in similar courses and that could have different effects on different students.
His feedback should ultimately be the deciding factor for you, when deciding whether to take or not...
I know that the Engineering program at my University requires Engineers to take a fall semester of "Electronics I" which covers all of the topics in your Electric Circuit I except for PSPICE which is done during the first lab of the winter semester in "Electronics II". The Ordinary Differential...
Thought about graduate school and....
I am a senior undergraduate student in Physics (last year is in progress with a GPA that is very close to a B+)..have been around these forums for nearly 2 years now and would like to ask a few questions regarding post-undergrad opportunities. I am...
I am confused by this Abbe thoery thing involvign the use of an optical computer.
A laser is focused onto a 10 μm screen with adjustable micrometer screws. A pinhole is provided to avoid any unnecessary dispersion of the laser beam. The first lens converts spherical wavefronts into plane...
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I am trying to open a .tex file. When I clicked on it, it asked what program I wanted to use to open the thing. So I selected wordpad. The thing opened up in wordpad with a blank document. When I selected print preview, it allowed me to scroll through 4 blank pages. Here' s the...
Using a 555 timer (square wave input) as a NOT gate, can the logical state (0 or 1) be determined during rise and fall times? I would think that this is some kind of discontinuity during which the properties of the wave are not known but am not very sure about the logical state thing. It is...
So what you are saying is that it is impossible to use square wave pulses to induce damped oscillations in a circuit consisting of L and C. Instead, application of such a wave pulse would induce FORCED or DRIVEN HARMONIC OSCILLATIONS.
Here' s the thing and I apologize for not posting this...
A square wave pulse (generated using an oscilloscope) is used to induce damped oscillations in a circuit that consits of an inductance L and a capacitance C connected in series. A resistance is present even though no resistor is present in the circuit.
a) Find the differential equation for...