Recent content by greg997

Thank you for that. What would be the conclusion, interpretation of such solution? - No such energy levels exists?

Hi Everyone. I hope someone can point me in right direction. I am struggling to work this out . If it was 1d confinement the calculated n number would be the energy level. So for example n= 3, means that quantum number is n= 3 and there is 3 possible quantum states. Is that correct? With 3D box...

fantastic. Thank you for your explanation and support

Apologies. I messed up with the formula above. The Volume V = 0.5 m^3 And the most probable speed Vmp = 1.5x10^3m/s. So how to I get T in Kelvin? None of the units cancel so whatever is left we call it Kelvin then? Once i got T I should use ideal gas formula to find pressure P?

Apologies. I am given Volume V= 0. 707m^3 Is may calculation correct? How do i get Temp T in kelvin? I multipled 4 amu by 1.66x10^-27. Is that correct?

So the formula for that T, m is just mass of one atom? For helium 4 amu? Not total mass? If that is the case , can i get correct pressure P from ideal gas formula? PV= nRT? I am given Volume, so I need to calculate n- number of moles. Is that correct?

Hmm... so what do i do with N- number of atoms? Yes, that was my intention. total mass of gas. Should I just then make m=4 to find T since helium is 4 amu?

Hello,

Can someone explain to me what I am doing wrong? Trying to calculate the Temperature T using this formula I am trying to find T using most probable speed of atoms formula. T = (V^2) m/( 2k) I am getting riduculous T like 20x10^27. Why? If number of atoms N= 2x10^24 how do i get mass m? each...

that is my first time trying to understand these other refrence frames. In general, in life we dont really do that. That special relativity subject is completly diffrent to other areas in physics. It is mind boggling. thank you all for your help and support. It takes some mental exercise to...

so in my case , the time was t=34s and velocity v=0.5 , so the distance was 17 cs.

so if the velocity of spaceship is 0.5c from planets refrence then looking from spaceships refrence the planets velocity is -0.5c? makes sense and distance?

thank you jbriggs444 for confirmation. How can i calculate velocity of planet B in spaceships reference? and the distance between these two planets from spaceships reference?

... in my case v =0.5c so the denominator is 866x10^-3. (40s - (0.5c * 20cs)/c^2)/(866x10^-3)=34 seconds would that be correct?

i got numbers wrong..again. i think it should be 34s not us.