Recent content by gema

I'm about to ask derivation of dilation time in terms of Special Relativity. I saw explanations in Introduction to Classical Mechanics by David Morin that dilation time is formed by assumption that light speed is absolute refers to all inertial reference. He derived it by comparing 2...

What is ensemble? I've read about this in blundell's book, and It is said that it's used to control microscopic properties. I don't understand this statement. Somebody please help me ..

I think this derivation is good, in terms to avoid misrepresentation (so far) of Δt terms in common derivation. I guess we should use V rms because it contains the average and variance. It means rms is arbitrary value, and it's good for approximation. by definition, rms quantity is...

Thanks for your helps, I know that collisions between particles and walls is relatively rare compare to collisions between particles themselves. But, when we're trying to find the pressure at the wall using classical mechanics law, we're beginning with F=Δp/Δt right? where Δp=...

Hello everyone, When I was studying about the way to find the RMS speed of an ideal gas by using classical mechanics, I wondered that why the time interval of the collisions can be approached as the time between two collisions, instead of contact-time between particle and wall. remember...

Homework Statement Consider the gas do the themodynamics process. If the process graph is one line with constant gradient, Homework Equations What process was happened? How to calculate its amount of heat which absorbed or liberated? The Attempt at a Solution I really need your...

thanks tiny-tim :smile:

Hi tim-tim why only one photon can be absorb by one electron? I really am confuses.

Do you dev70? I have the same question too Can you share me why?

Hello Forum, Let us review about rocket move.The Rocket moving with 2 mechanical principe;Newton's 3 and conservation of momentum.If rocket at t=0 is in rest condition (E=0),after the gas with dm mass go out to the back from rocket ,then rocket move to the front(E=Ek1+Ek2). Nothing external...