Hi Everyone, Sorry for being incommunicado the past several months. Job changes, town changes, etc. I wanted to point out Straycat's interesting, intriguing...
Curiously, when I took physics in HS, these were questions that were put on quizzes and tests as well. I also remember when taking physics at Carnegie Mellon,...
I'm just glad that people are still around in this group after being dormant for such a long time! :) Glad to hear from you again, Tom. And let's tackle what...
... Briefly explain your ... was thrown straight up ... his claim. Why didn't the ... Hi Tom et al, Probably what you had in mind was a test mass in circular...
As Tom directed this at the students in this group, here's my response. I hope that this reply is in the appropriate place. 1) "T/F the magnitude of the static...
... Cool, Simon, I'm glad you enjoyed it. The Third Law question you posed is a classic and I plan on using it when we cover that in a couple weeks!...
Hi David, ... I know it is tempting to say that, but just plot the speed versus time and you can see that it is definitely not constant. This is a case where...
Hi Tom, Completely off topic but was just wondering where are you based now (if you don't mind me asking)? I know you were at LBNL for awhile there weren't...
Hi Kent, I'm now an assistant professor at Cal Poly, a state university in central California near the coast. It is primarily an undergraduate university and...
Here's a very nice paper from last year titled: "A Universe Without Weak Interactions" by Roni Harnik, Graham D. Kribs, and Gilad Perez (from SLAC, University...
... It certainly feels like it. I am unable to sustain constant "feeding" of it since I'm involved in another forum AND the care-and-feeding of my own blogs....
If I may ask which physics blogs are you writing? Also I guess a good time to ask what are some recommended physics blogs out there? : ) Regards, John...
... good time ... My physics blog is at http://physicsandphysicists.blogspot.com/ As for other physics blogs, the APS's Physics Central has a list of "notable"...
Hi Tom, I've just finished my Masters thesis on a measurement of the half-life of 10C. Unfortunately, this particular experiment did not quite work out as we...
Thanks for that, some good reading there! Oh one of the others I saw a story about a thief at Cern, which is quite a funny story : ) John On 23 Mar 2007...
Hi John, If you're looking for physics blogs, I'd like to humbly recommend http://biocurious.com/ a blog written by physicists primarily about biophysics and...
Hi all, The mass-energy equivalence in SR, if assuming inertial mass equals gravitational mass, provides a link between gravity and the weak and strong...
... is ... be ... Hi, You're probably already familiar with the Eotvos experiment but possibly the lecturer just meant those classic experiments done for ...
Hi David, Sometimes if the paper is "niche" (highly specialized) or a little outside the box, publishers have a hard time finding referees willing or able to...
Hey Tom, Thanks for the encouragement. It will be worth it to wait a while if that means getting a proper review. And don't worry, I won't get too discouraged....
... http://www.perimeterinstitute.ca/en/Events/Many_Worlds_at_50/Many_Worlds_at_ 50/ Hi David, just few webpages about that (plus a weird Tomb Raider version...
Here's a pretty good trick question I saw on Yahoo Answers (posted by Alexander): "Father (Mf = 80 kg) and son (Ms = 40 kg) are fishing from opposite ends of a...
I think that the answer would depend on the way the father and son swap places. If there was no viscous force, then there are no net external forces acting on...
I think your method for solving the problem without viscous force is right. A net transfer of 40kg by 6 meters would cause the center of mass to shift (with...
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