How many times heavier is the electron in the particle accelerator than in the computer monitor?

February 21, 2010 by admin · 1 Comment
Filed under: Physics 
computer monitor
Savonna asked:

An electron has a rest mass of 9.11 x 10^-31 kg. The speed of the electron in the cathode ray tube of your computer monitor is 4.00 x 10^7 m/s. However, the speed of the electron is 0.98 c in a particle accelerator used in a cancer therapy. How many times heavier is the electron in the particle accelerator than in the computer monitor

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Is it good to keep sun glass while looking at the computer monitor?

January 10, 2010 by admin · 9 Comments
Filed under: Physics 
computer monitor
STYX asked:

Is it good or bad to our eyes to keep sun glass while looking in the computer monitor?

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The current in the electron beam of a computer monitor is 310 A. How many electrons per second hit the screen?

October 2, 2009 by admin · 1 Comment
Filed under: Physics 
computer monitor
apriljtr62674 asked:


The current in the electron beam of a computer monitor is 310 A. How many electrons per second hit the screen?

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Is there dangerous radiation when speakers are close to the computer monitor?

September 30, 2009 by admin · 6 Comments
Filed under: Physics 
computer monitor
Slightly worried asked:


I heard that dangerous radiation is generated when the speakers are being kept close to the computer monitor.
I wanted to know if anyone else heard about it.

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