What is the lifetime of a subatomic particle at rest?

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Homework Help Overview

The discussion revolves around determining the lifetime of a subatomic particle when at rest, given its lifetime while in motion. The context is rooted in the principles of relativity.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to find a formula for calculating the lifetime at rest based on the given lifetime in motion. Some participants question the understanding of relativity and suggest that the problem is straightforward if the correct formulas are applied. Others express confusion regarding the application of relevant equations, particularly in relation to rest mass and time dilation.

Discussion Status

The discussion includes a mix of attempts to clarify the problem and expressions of frustration regarding the understanding of relativity. Some participants have offered guidance on the need for specific formulas related to time dilation, while others have raised concerns about the clarity of the original poster's question.

Contextual Notes

There are indications of potential misunderstandings about the fundamental concepts of relativity, as well as a lack of clarity in the original poster's question. Additionally, there are comments regarding the behavior of other participants in the thread, which may detract from the academic focus.

aptiva
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A subatomic particle moving at a speed of 5.5*10^7 m/s has a life of 3.1*10^-5 seconds. what is the lifetime of this aprticle when it is at rest? ...does anyone know what formula i would use to solve this one?
 
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this is the most basic problem in relativity... are you having a hard time understanding relativity or you just can't figure out how to do this problem...
relativity usually puts in a advance physics class. since you are learning relativity now, i believe you have already suffer through the classical mechanic and electrostatic and thermal physics those basic stuff... and you have already develope a skill to deal with physics problems. This problem is not tricky at all. plug the number in appropiate formulas and the answer will shown up instantly... if you really can't do this problem, at least show me some of your work or let me know which part you stuck in...
 
i dunt understand the question the only thing i can find in the textbook is that rest mass is the mass measured at rest to the observer and that in the equation p= mv/ square root 1-v^2/c^2 m is what the rest mass is but i dunt understand how to apply the equation
 
Vincentchan,did u copy-pasted the message from the other thread??It looks remarkably similar... :-p
To the OP:Do you know any formula involving time dilation in special relativity?

Daniel.
 
dex.. aptiva and chicky is the same person... and he posts these 3 problems in 5 to 6 different places in this forum...
 
So we're dealing with an identity crisis,huh? :-p

Daniel.
 
Someone should tell this retard that "dunt" is spelled "don't" or "do not" and that "I's" should be capitalized.
 
all u nerds shud...das right SHUD not SHOULD kiss my ass
 
hype_chicky said:
all u nerds shud...das right SHUD not SHOULD kiss my ass
Where are the moderators? Seriously, this person needs to be dealt with. Why not remove the entire thread?
 
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