How do you calculate the He-4 mass as 4.00260 without it being in the data booklet?????
@donerphysics
6 жыл бұрын
They would give that value in the question.
@vnarayan18
Жыл бұрын
Great video!
@donerphysics
Жыл бұрын
Glad you think so!
@paarshavmehta7954
3 жыл бұрын
I paid for the membership, but for some reason I am still not given the "member" status and I don't have access to all videos. Is this a bug or something else?
@donerphysics
3 жыл бұрын
Hi Paarshav, you have the tier I membership which gives you access to the google sheet with all the links, some notes and some free worksheets. Tier II membership enables playing of the member's only videos.
@paarshavmehta7954
3 жыл бұрын
@@donerphysics How do I get tier 2 membership?
@donerphysics
3 жыл бұрын
Hi Parshav .... just click the JOIN button below any video and you should see this option. Let me know if there are any problems.
@paarshavmehta7954
3 жыл бұрын
@@donerphysics I did that and when I paid the money, I got the access to tier 1 membership
@donerphysics
3 жыл бұрын
When you click the join button, you should see, on the left of your screen, two options, one for links and one for new video access. Click on the one that says new video access and then go through the process and your membership will be upgraded.
@SebastianRodriguez-gi8iq
3 жыл бұрын
at 8:06 you mention that de mass of Helium-4 also contains the mass of 2 electrons. Why? I thought Helium-4 had no free electrons.
@jackbeda521
3 жыл бұрын
Often in IB problems they only ask about the Helium-4 _nucleus_. The alpha particle (α) is a Helium-4 nucleus but Helium-4 means that it's the whole atom, including it's two electrons. In this case the data he's using is for the full atom, not just the nucleus.
@juanaekmek8256
2 жыл бұрын
i have some examples in my study guide that for calculating the mass of the protons use the mass of the electrons, why is this?
Пікірлер: 19