/u/RavernousPenguin's posts in /r/askscience

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Why in binding energy calculations do we include emitted neutrons but not electrons?

2479 upvotes

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Why is Iron more stable than Nickel even though it has a lower binding energy per nucleon?

21 upvotes

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Why does the Pauli exclusion principle cause the strong nuclear force to be repulsive at short distances?

17 upvotes

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Can TIR only occur if the second medium has a lower reflective index?

12 upvotes

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What would happen if you gave an electron the exact energy of its work function?

11 upvotes

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Why does adding an iron core to a coil increase the flux density?

11 upvotes

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When is an electric potential positive and when is it negative?

4 upvotes

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Why does an increase in binding energy (through a reaction) release energy?

3 upvotes

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Photons cause electron decay/excitation between states, provided its energy is 'exactly' the difference between to the two states in question, but how 'exact' is 'exact'?

1 upvotes

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How does a weak/strong immune system affect the results of a COVID-19 infection?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why in binding energy calculations do we include emitted neutrons but not electrons?	2479
Why is Iron more stable than Nickel even though it has a lower binding energy per nucleon?	21
Why does the Pauli exclusion principle cause the strong nuclear force to be repulsive at short distances?	17
Can TIR only occur if the second medium has a lower reflective index?	12
What would happen if you gave an electron the exact energy of its work function?	11
Why does adding an iron core to a coil increase the flux density?	11
When is an electric potential positive and when is it negative?	4
Why does an increase in binding energy (through a reaction) release energy?	3
Photons cause electron decay/excitation between states, provided its energy is 'exactly' the difference between to the two states in question, but how 'exact' is 'exact'?	1
How does a weak/strong immune system affect the results of a COVID-19 infection?	1