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Results tagged with homework-and-exercises
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user 257313
Applies to questions of primarily educational value - not only questions that arise from actual homework assignments, but any question where it is preferable to guide the asker to the answer rather than giving it away outright. Please READ THE GUIDANCE IN META before asking homework-like questions.
0
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1
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Using the spacetime diagram, calculate the speed $v$ of the $Σ'$ frame relative to the $Σ$ f...
As measured in frame $Σ$, the coordinates of events $A$ and $B$ are respectively $(ct_A,x_A)$ and $(ct_B,x_B)$. The interval between the events are spacelike. There is then a frame $Σ'$ in which the t …
- 83
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perturbation of the form $W(x) = a\omega_0\delta(x− \frac{a} {2})$ calculate the changes in ...
Consider a particle of mass $m$ in one-dimensional infinite potential well of width $a$, i.e. $V (x) = 0$ for $0 ≤ x ≤ a$, and $V (x) = \infty$ for $x < 0$ and $x > a$.
The particle is subject to per …
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1
vote
1
answer
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Frequency of photon from decaying particle in Lab Frame [closed]
A particle of rest mass M, while at rest in the laboratory, decays into a particle of mass $m$ and speed $v$, and a photon of frequency $f$ moving in opposite direction. Relativistic momentum and ener …
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Frequency of photon from decaying particle in Lab Frame
This was just a simple re-arrangement problem which I think I have since solved.
If $Mc^2=\gamma(v)mvc+\gamma(v)mc^2$
$Mc^2=\gamma(v)mc(v+c)$
$\frac{Mc}{v+c}=\gamma(v)m$
using $0=\frac{hf}{ …
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0
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53
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Energy and momentum conservation equations for frame moving at speed $v$
A particle of rest mass $M$, while at rest in the laboratory, decays into a particle of mass $m$ and speed $v$, and a photon of frequency $f$ moving in opposite direction.
I want to look at this …
- 83
2
votes
1
answer
515
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Eigenstates for a particle in a spherically symmetric potential
Consider a particle in a spherically symmetric potential. Write down a complete set of commuting observables for the system, the relevant eingenvalue equations, and the corresponding eigenstates in a …
- 83
1
vote
1
answer
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Normalization of a Wave-function in spherical co-ordinates [closed]
So I have been provided with the following wave-function
$ψ(x, y, z) = N(x + y + z)e^\frac{
−r^
2}{α^2}$
I am trying to convert it to spherical co-ordinates and to find the Normalization constant $N …
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