Half-Life and Carbon Dating with Example Problems | MCAT
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- Опубліковано 27 лип 2024
- In today's MedCat lesson, we cover the concept of half-life, first explaining it mathematically, then explaining it with common sense-which is how you should approach these problems on test day. Main takeaway: half-life does not just apply to radioactive isotopes like carbon 14, but can also apply to things like hormones or drugs.
Also remember that half-life can apply to many different things, such as hormone levels, but commonly refers to the half-life of isotopes that undergo radioactive decay. If you want to see a video of radioactive decay, check out the Chem/Phys playlist on the MedCat channel, and don't forget to like and subscribe!
Time Stamps:
Introduction to Half-Life: (0:00)
Relevant Equations (medium-low yield): (3:50)
Practice Problem #1: Drug Half-Life: (7:30)
Practice Problem #2: Carbon Dating: (10:05)
Outro: (14:06)
Comprehensive Amino Acid Playlist: bit.ly/3sMGBUG
Check out Aratasaki, the beat maker behind my intro and outro: bit.ly/2Pma5v0
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All content and media on this channel is created and published online for informational purposes only. It is not intended to be a substitute for professional medical advice and should not be relied on as health or personal advice.
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Half-Life and Carbon Dating with Example Problems | MCAT
Half-Life and Carbon Dating with Example Problems | MCAT
Half-Life and Carbon Dating with Example Problems | MCAT
Correction at 10:40: the 14C isotope is actually made by cosmic radiation (protons and atomic nuclei) that strike atoms already hanging out in the Earth's atmosphere. These collisions release neutrons from the atoms that were hanging out, and those neutrons combine with 14N to create 14C, liberating a proton from the 14N. Just to be clear, this is totally outside the scope of the MCAT, but nevertheless some really cool science!
For more information, check out this great source: www.radioactivity.eu.com/site/pages/RadioCarbon.htm#:~:text=Carbon%2D14%20is%20continuously%20generated,carbon%2D14%20(B).
Topic suggestion: Electricity and magnetism
Thank you sooooo much!
You're welcome!
First I wanted to thank you for your videos as they are super helpful and you explain things really well! Not that it's important for the material, but I just wanted to point out that A.D. stands for anno domini and starts after the birth of Christ, not after the death of Christ.
You're absolutely right! Thanks for pointing that out.
hey, I tried using your link for the amino acid page but it just bring me to a bing server. How could I access it? Thank you so much brotha you a dawg with these mcat vids
Shoot! Is it working now?
Ho did you get t=12,000?
Since we are looking at 10,000 BC, that means we have 10,000 years before year 0. We live approximately in the year 2000, so we add 2000 years to get 12,000 years! In other words, 10,000 BC was around 12,000 years ago.
@@medcatmcat thanks. Your videos are invaluable in my MCAT prep. Please keep them coming.