Recent content by dunn

Hrm, I was completely overlooking the fact that in rigid bodies and angular velocity and angular acceleration are independent of the reference point of the body. It makes sense now.

Here's the (sloppy) solution as given to us. Does this make any sense?

Homework Statement Rigid body The plane rigid body ABCD shown in the figure has rectangular shape and slides along the orthogonal runners X, Y. The points A and B are always in contact with the ranners. Data: ω=3 rad/s (angular velocity counterclockwise); \Theta=30°; AB=CD=1m; AD=CB=0.5m...

I'll check it out. Thanks.

I'm (again) tired of being given formulas that seem to come from nowhere in the book I'm currently using (Moran/Shapiro). Is there a more math-intensive basic thermodynamics text out there that actually handles things like derivations of specific heats from partial differential equations? It's...

It won't bite me later on, it will help me in the meantime. I don't need solutions in the sense that I study directly from them -- I just find it a waste of time to spend hours on a problem for which I can't determine where I went wrong (if I even did -- many texts have errors) when I could try...

Kleppner's book only has the answers to the exercises, though. I've compiled a lot of solutions provided by different professors, but still the book itself has that same problem as Alonso-Finn. I've never seen Morin's book before, but it seems like it's just a set of problems. Ultimately from...

I've come to the conclusion that there is no such thing as a good physics book. Every one has multiple problems with it. The only book which approaches the level of mathematical rigor necessary for learning the general principles of physics is Alonso-Finn. The rest are just plug-and-chug...

I'm not trying to learn the mathematics through physics books. The problem is that I already know the mathematics and it's harder to gain the understanding of the physics when everything is done using special linear cases using scalars instead of demonstrating the general case using vectors...

So far the best general physics book for EM I've found has been Alonso and Finn. The problem is that I just spent too much time trying to understand electric displacement using the hand-wave magic mathematical definitions they give. The rest of the book seems fine (it gives vector forms for...

Sorry, that was the link to volume I. Here's the link to volume II which includes multivariable calc, linear algebra, and geometry: http://quod.lib.umich.edu/cgi/t/text/text-idx?c=spobooks;idno=5597602.0002.001

There's a good free book available here: http://quod.lib.umich.edu/cgi/t/text/text-idx?c=spobooks;idno=5597602.0001.001 It covers all those topics, has solutions to exercises, and doesn't really toy around like some Calc texts do.

Yes, N 30° E means 30 degrees clockwise from the north direction. The problem is that the book only gives simple numerical answers so I can't check to see if I did anything wrong in particular. With this exercise there were others associated tasks (finding the change in momentum of the...

Okay, I think the book has (YET ANOTHER!) misprint and the angle should actually be N 23° E rather than N 30° E. Could someone verify this for me? It's late, I'm tired, and maybe I made an error. (I need a new exercise text).

Homework Statement A particle of mass 3.2kg is moving due west with a velocity of 6m/s. Another particle of mass 1.6kg is moving due north with a velocity of 5.0m/s. The two particles are interacting. After 2s the first particle is moving in the direction N 30° E with a velocity of 3m/s...