Half Life (part 2)
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8:03
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HALF LIFE IN 60 SECONDSby rompkows8,317,330 views
@futebalmakedonia That should be correct. And the numbers in this problem are already broken down fairly nicely. You had to calculate for exactly 5 half-lives. More complicated problems would involve working with non-whole numbers like 3.347 half-lives or something.
bboydru 11 months ago
I mean she explained it, but I see her and shes indian, which makes me think of her accent , which makes me think of ghandi, which makes me think of food, which makes me go on to other weird thoughts, and in my head i think this is only taking a few seconds not realizing its been like 10 minutes of my random thoughts and when i come back to reality i realize what just happened. But seriously ive thought out entire comedic sketches in my head of random situations during class.
futebalmakedonia 11 months ago
@bboydru would it be from 31250? and one more question then how would i find the answer if the amounts are broken down evenly?
futebalmakedonia 11 months ago
@futebalmakedonia The concept is the same. What it means is that after every 0.90 seconds, half of the substance will have decayed. So how many times can that happen in 4.5 seconds? That's how many times you break the substance in half. See if you can figure it out from that explanation.
bboydru 11 months ago
@bboydru well please help with this one question. half life is .90 seconds and it asks how much of the substance(1,000,000) would be left after 4.5 seconds.
futebalmakedonia 11 months ago
@futebalmakedonia This video and lesson is for the high school level general Chemistry class. It's an introduction to the concept of half-lives and nuclear decay. I purposely made the numbers break down in a clean way for the purpose of teaching about half-lives. Therefor the method is also much simpler. It highlights the concept.
This method will not work for more complicated half-life problems where the time or amounts aren't broken down evenly. Perhaps that's what your teacher meant?
bboydru 11 months ago
i showed my teacher the method and she said it was the wrong way to do it. She says i need to try to learn. I tried, She put me down, and now i give up on science
futebalmakedonia 11 months ago
A very good teaching video.
5 *
Topdoginuk 2 years ago 2
I love your teachings! I love science, esp. this field! Great Job! 5/5!
KarbineKyle 2 years ago 2