Homework Statement
A H-atom when in its lowest energy state consiste of a proton nucelus of charge +e and an electron of charge -e and mass 9.11e-31. In the Bohr model of the atom, the electron moves around the nucleus in an aprrox. circular orbit of radius .51e-10m. The speed of the...
You wouldn't happen to know a dude with a yo-yo, would you? Because if you did, then yes, same class. Definitely the same book.
That, I chalked up to book-error. I couldn't get any other answer and the book is known to be wrong occasionally.
well, r = L = 1m, so none of the values would change, so the erroneously way I calculated it before would have yielded the right answer. But that's obviously not right.
It's defined L=Iw, but the bullet is traveling in a straight line (I'm so ignoring projectile trajectory when I say that) so it doesn't really have a rotational axis. It does once it hits the block, but then that wouldn't be pre-collision, so I don't see how it can. I can completely see how...
Okay, I double checked it solving for g instead of the height (I habitually check the constants) and it came out as 9.80002. So, either my book is scary wrong or I just set the problem up wrong to begin with...any brainwaves?
Yes, it is. The squared latex was messing with my square-root latex and it just got messed up.
Hmm...if you're doing the delta-heights, wouldn't the *delta-height* be the same for both the masses and the rod? I can see the height measurements themselves being different, but in that case...