anuttarasammyak's latest activity

Thank you for your reply. Point 2 of post #1 was pointless, so I withdraw it.

Let me confirm for my understanding. Even in the 1s state of exotic hydrogen atom consisting of proton and muon, does muon not collapse...

Addeentum to 1 of post #1 on proper time in quantum mechanics : Consider a double-slit experiment with an electron beam at fixed...

[Mentors’ note: Spun off from this thread] I understand that you are interested in the concept of time in quantum mechanics. Here are...

Re:#2 2.1 When the rolls heve mass and inertia of rotation $$r_1=r, M_1, I_1$$ $$r_2,M_2, I_2$$ The additional term to Lagrangian is...

Thank you for a nice list. Looking at this list, I realized that thermodynamic time may be the only one that cannot be defined...

My version is $$L=mr^2\dot\theta^2(1+\cos\alpha)+mgr\theta\sin\alpha$$ hopefully that is the same:)

????? By definition, purely translational motion is when all the points of a rigid body move with the same velocity

My bad. I confused translational with horizontal translational.

The drop of the slab releases potential energy which enhances kinetic energy. The perpendicular component of the slab displacement...

I would try some math. 1. I observe that angle ##\alpha## does not change during the motion but the slab moves with NOT purely...

Thank you very much @anuttarasammyak, you've solved every doubt.

Because by ##\lambda## you got $$ f_r=\frac{v}{\lambda} $$ 0.86 m is for ##u_s=0##, a parked car, which is larger than 0.76m which is...

If B performs a measurement, there is no doubt that this constitutes an event. However, in the situation under consideration, B does not...

By the hint $$<L_x>=<L_y>=0$$ $$<L_z>=l\hbar$$