Showing px-Et is invariant using Lorentz Transformations

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Homework Help Overview

The discussion revolves around demonstrating the invariance of the quantity px - Et using Lorentz Transformations, where p represents momentum and E represents energy of an object at position x and time t.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants are attempting to identify relevant 4-vectors related to the problem. Some express uncertainty about how to start the problem and seek guidance on initial steps.

Discussion Status

There is an ongoing exploration of the problem, with hints provided regarding the identification of 4-vectors. Participants are expressing confusion and seeking clarification on their understanding.

Contextual Notes

Some participants indicate a lack of clarity on the definitions and relationships involved in the problem, which may affect their ability to proceed.

Nitric
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1. Using the Lorentz Transformations, show that the quantity px - Et is invariant, where p and E are the momentum and energy, respectively, of an object at position x at time t.
2. px - Et
3. I needed help on starting the problem. Where should I begin?
 
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Nitric said:
Using the Lorentz Transformations, show that the quantity px - Et is invariant, where p and E are the momentum and energy, respectively, of an object at position x at time t.

Hi Nitric! :smile:

Hint: what 4-vectors can you see in this problem? :wink:
 


tiny-tim said:
Hi Nitric! :smile:

Hint: what 4-vectors can you see in this problem? :wink:
p x E and t?
 
Nitric said:
p x E and t?

erm … nooo :redface:
 


Damn. Well I honestly have no idea, kinda stuck on this problem
 

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