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1. ### The sources of error in a diffraction grating experiment

Doesn't anyone exist?:smile:
2. ### The sources of error in a diffraction grating experiment

I think an error could be to read the diffraction angle. Because people may read different angles, albeit with slight differences. And because the diffraction angle is related to the wavelength, can affect it.
3. ### The sources of error in a diffraction grating experiment

Yes, I am familiar with diffraction patterns and its theory. No, this is not a school work question, it is a personal question, otherwise I would have sent the question in the relevant section.
4. ### The sources of error in a diffraction grating experiment

In a diffraction grating experiment, what can be the sources of error and also what effect do these sources have on the unknown quantity (wavelength) in the experiment?
5. ### What is the recoil energy of a nucleus produced in its first energy level?

Table: To solve, using the conservation of energy: E0=(m(deutron)+m(16O)-m(17O)-m(p))c^2 so: E0=(2.014+15.994-16.999-1.008)931.5=0.93 MeV. so using the conservation of energy: 14.95+0.93=16.62+0+E' E'=- 0.74 MeV But the energy sign has become negative. I also calculated for the first excited...

no
7. ### I Why is Action a scalar?

I don't know. This is the question our professor asked us without explanation to think. What is the reason that it is a vector?
8. ### I Why is Action a scalar?

Why is the action a scalar? Please explain.

ok thanks
10. ### I The surface area of an oblate ellipsoid

A similar formula was stated by our nuclear professor, but with the difference that there was b instead of c. So I thought in this case b = c
11. ### I The surface area of an oblate ellipsoid

My data is as follows:
12. ### I The surface area of an oblate ellipsoid

My final result is as follows: 4*pi*R^2 (1+ε+ (7/5)ε ^2+ (36/35)ε ^3 +...) Which has a bad difference with the result of the book.:oldconfused:
13. ### I The surface area of an oblate ellipsoid

In "An Introduction to Nuclear Physics by W. N. Cottingham, D. A. Greenwood" for the surface area of an oblate ellipsoid, the following equation is written for small values of ε : The book has said this without proof. I found the following formula for the desired shape: No matter how hard I...
14. ### I The center of mass & relativistic collisions

I understand now by your good example. Thankful.
15. ### I The center of mass & relativistic collisions

I'm still confused. For example, in 'Introduction to Elementary Particles by Griffith', for relativistic collisions, the center of momentum frame is introduced to solve problems. But isn't the center of mass frame appropriate in relativistic collisions?
16. ### I The center of mass & relativistic collisions

In special relativity (especially relativistic collisions), is the center of mass frame as useful as Newtonian mechanics?
17. ### A Higgs particle and non-zero expected value in vacuum

What does the phrase “Due to Lorentz invariance, only the Higgs particle can have a non-zero expected value in a vacuum” mean?
18. ### Mass difference due to electrical potential energy

Yes. I did not pay attention to it. 😕 I thought the exercise was solved!☺ 👍🙃🙂
19. ### Mass difference due to electrical potential energy

I came back.:smile: I still have a knot in understanding this exercise. :frown: Now the values are almost equal. That is, the potential difference is equal to the mass difference. What exactly does this mean? That is, how do you analyze this?
20. ### Mass difference due to electrical potential energy

Yes, the result is exactly the same. I got the previous formula. Thank you and those who guided me in this exercise.
21. ### Mass difference due to electrical potential energy

The results of this way should be the same as the previous way, right?
22. ### Mass difference due to electrical potential energy

Do I have to use both electric fields? That is, I have to use both the electric field inside the sphere and outside the sphere ?
23. ### Mass difference due to electrical potential energy

After equalizing the units, the mass difference is almost the same as this number. Thanks for your guidance
24. ### Mass difference due to electrical potential energy

Using the relation sent here and the following data, I obtained a value for the electric potential energy of the proton, which is: 1.6 * 10^ (-13) J R= 8.7 * 10 ^ (-16) m k= 9 * 10 ^ (19) Nm^2/c^2 Q= 1.6 * 10 (-19) c What does this number say?
25. ### Mass difference due to electrical potential energy

Nothing. I do not know exactly what to calculate. All I know is a relationship to potential energy. Suppose I got it, what does it have to say and how does it explain the mass difference?
26. ### Mass difference due to electrical potential energy

So we can not explain the mass difference in this way?:frown:
27. ### Mass difference due to electrical potential energy

Suppose I get a number for potential energy this way. How can this number explain the difference in mass to me?🤔
28. ### Mass difference due to electrical potential energy

Regarding the potential energy of a charged sphere, I know the following relation: U = k(3/5)((Q^2)/R) But I do not know how to use this to solve.

yes
30. ### Mass difference due to electrical potential energy

Im a physics student and this exercise was given to us by a professor of particle physics.
31. ### Mass difference due to electrical potential energy

Regarding the potential energy of a charged sphere, I know the following relation: U = k(3/5)((Q^2)/R) But I do not know how to use this to solve.
32. ### Mass difference due to electrical potential energy

I asked for guidance, not a complete answer. If someone can not guide, no problem.

i don't know
34. ### Mass difference due to electrical potential energy

I do not really know the relationship between potential energy and mass difference. Isn't the difference in mass of protons and neutrons due to their quarks? (the neutron is made of two down quarks and an up quark and the proton of two up quarks and a down quark.) Please help.

thanks🙏
36. ### I Loss of electron & proton energy due to radiation

I do not know its sort. Suppose it is inside a particle accelerator.
37. ### I Loss of electron & proton energy due to radiation

I did not mean spontaneously. Does it not emit radiation when the electron is accelerated?