Recent content by kevlar94

Interesting. Thanks for the help.

I guess I was making everything to complicated. It works. I'm not sure why I was so confused. There is no current through R_2. Why is that? If there is a connection between the emfs should there not be current everywhere in the circuit? Thanks

I'm really sorry I did not notice this before. emf1=17V emf2=.5*emf1 or 8.5V. All the resistance is 1.22ohms My apologies that I did not catch that, it did not copy correct. I have been using 8.5V for the problem. Again, sorry about my mistake.

I wrote a long explanation of my work and then i went to submit and it lost it. Basically I worked out the three loops again and simplified using the fact that R is equivilant to get the following system: (-i2-i3)=6.97 (i1+i3)=13.9 (i1-i2)=-6.97 Wolfram alpha says that is impossible...

That is supposed to be i2, sorry. The rest of the equations look correct. Thanks.

Homework Statement In the figure, the ideal batteries have emfs 1 = 17.0 V and 2 = 0.5001 V, and the resistances are each 1.22 Ω. I tried to include a link but I am unable. As best as I can describe: There is one main loop with a wire connecting the bottom and the op piece. The two emfs are...

Does anybody have any idea how to approach the second problem? I understand that I need a restoring force in order to find a k value for the system. Basically the sum of the forces will equal ma, not zero, and P'inA - PinA=ma but I am not sure how to go about actually solving for the the a value.

Homework Statement A cylinder is filled with .1 moles of an ideal gas at STP, and a piston of mass 1.4Kg seals the gas in the cylinder with a frictionless seal, as shown in the figure below. The trapped column of gas has an initial height 2.4. The piston and cylinder are surrounded by air...

Thanks for the help. Sorry, the prompt says the girl is 25kg and the inflatable ring has a horizontal cross-sectional area of 0.7m^2. Yes, that is what I meant. I skipped a step I should have mentioned. The square root is from the formula for frequency using k(from hookes law) from...

Homework Statement A girl with mass m kg steps into her inflatable ring with horizontal cross sectional area Am^2 and jumps into the pool. After the first splash, what is the frequency of the girl bobbing up and down? Homework Equations I assume that we need the extra force,F_e, after...