Recent content by xavior6

Correct, but I am failing in my attempt to model the path that the wave could take around the "bump". Would this be the arc-length of the semi-circle?

Homework Statement A sound wave with 40cm wavelength enters a tube at the source end. What must be the smallest radius r such that a minimum is heard at the detector end (picture attached)? Homework Equations I am really lost in this problem, but I BELIEVE constructive/destructive wave...

Homework Statement The inner diameter of a steel ring is 2.0000 cm, and the diameter of an aluminum disk is 2.0100 cm. Both are at 430 degrees C. At what common temperature will the disk t precisely into the hole in the steel ring? alpha(Steel) = 1.3e-5 alpha(Al) = 1.9e-5 Homework...

Oh but that's the problem. I don't want to ask you to do the calculations, but if you do, you will find that there is no dilution that gives a ppt for one possibility and does not for the other possibilities. I tried 20 mL final volumes, with each solution starting at 10mL, then sequentially...

Hmm, well I'm glad I'm not missing something. The only problem with my method is that I must be able to tell the difference between a light, medium, and dark precipitate. I don't have a control other than my memory from an experiment two weeks ago.

Homework Statement Hello. I have a lab procedure that I am supposed to write, and since my teacher is on a two-week sick leave and the substitute does not know anything, I seriously need some assistance. Please note that for the following problem, a titration is NOT allowed. It must be...

Homework Statement Hello. I recently did a lab with my chemistry class in which we mixed Potassium Iodide and Lead(II) Nitrate of different dilutions. We started off with 10mL of each solution and mixed them, giving us a final volume of 20mL. We then gradually decreased each solution's volume...

Hmm what you say makes complete sense. But i still do not reach the correct answer. Using your advice, the modified solution method would be: Fnet= -6000N Fnet= 2038.7Kg(a) a= -2.94. Solving this using the Vf(squared)=Vi(squared)+2(a)(d) formula, Vf= 22.6 m/s The answer is 23.7 m/s, so I am...

Homework Statement A Rocket Sled weighing 20000N is gliding at 24 m/s (North) on ice where friction is negligible. Suddenly it passes over a rough patch 22m long, which creates a friction force of 6000N (south). With what velocity does the sled leave the rough patch? Homework Equations...