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Misconceptions of E=MC^2

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Author Topic:   Misconceptions of E=MC^2
Tanypteryx
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From: Oregon, USA
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Message 140 of 243 (453057)
02-01-2008 10:36 AM 		Reply to: Message 137 by cavediver
02-01-2008 10:14 AM

Re: 0.6 grams of mass lost at Hiroshima
This is a little off topic, but I know the emitted photons will be at 511 KeV, but what is their frequency?
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What if Eleanor Roosevelt had wings? -- Monty Python
​
You can't build a Time Machine without Weird Optics -- S. Valley
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Tanypteryx
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Posts: 4451
From: Oregon, USA
Joined: 08-27-2006
Member Rating: 5.5

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Message 142 of 243 (453119)
02-01-2008 12:52 PM 		Reply to: Message 141 by cavediver
02-01-2008 10:42 AM

Re: 0.6 grams of mass lost at Hiroshima
v=7.711838623^35
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is this cycles per second? In a former life (many years ago) I used to do gamma spectrometry using a Canberra ultrapure germanium detector....I have forgotten a lot since I got a real life.
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Edited by Tanypteryx, : No reason given.
​
What if Eleanor Roosevelt had wings? -- Monty Python
​
You can't build a Time Machine without Weird Optics -- S. Valley
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 Message 144 by cavediver, posted 02-01-2008 1:32 PM Tanypteryx has replied
  
Tanypteryx
Member
Posts: 4451
From: Oregon, USA
Joined: 08-27-2006
Member Rating: 5.5

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Message 145 of 243 (453150)
02-01-2008 2:31 PM 		Reply to: Message 144 by cavediver
02-01-2008 1:32 PM

Re: 0.6 grams of mass lost at Hiroshima
OK, thanks I think I've got it now....maybe
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1 eV = 1.610^’19 J.
511 KeV = 8.2x10^-14 J
511 KeV photons have a frequency of 7.7^38
​
What if Eleanor Roosevelt had wings? -- Monty Python
​
You can't build a Time Machine without Weird Optics -- S. Valley
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