Recent content by Gabe805

I just uploaded another pic. In case that one doesn't work, the circuit is just an RC series circuit with a battery and a switch.

Homework Statement . Switch http://edugen.wileyplus.com/edugen/courses/crs7165/halliday9781118230725/c27/math/math152.gif in Fig. 27-63 is closed at time http://edugen.wileyplus.com/edugen/courses/crs7165/halliday9781118230725/c27/math/math164.gif, to begin charging an initially uncharged...

Looking back at my first post, I see that the relevant info was not posted. Emf=12V R1=2000 R2=3000 and R4=4000 ohms. To answer the question in the problem statement, don't I need to first calculate what the current is through the circuit? By equivalent circuit, I meant finding the...

Sorry about that. Here it is.

Homework Statement How do I get the equivilent circuit in this scenario? The battery is not directly connected within the circuit. I know how to find the equivilent resistance in situations where the battery is "inside" the circuit but I am having a little trouble with this one. The voltage...

Yeah, I had a hunch it had something to do with that. If the inner and outer radii are different, then it doesn't wind up being a rectangle. Thanks for the reply.

http://edugen.wileyplus.com/edugen/courses/crs7165/art/qb/qu/c29/pict_29_93.gif if I wanted to find the area of the outer circular strip, I know I would just take the area of the composite and subtract out the inner radius. (i.e. pi(a^2)-pi(b^2)). However why can't I use...

Homework Statement [/B] I have come upon a number of problems where there are two or three different dialectrics inside a capacitor. according to the solutions manual I can often treat the dialectrics as capacitors in series or parallel. My question is why can you treat them as capacitors...

Makes sense. Thank you for explaining it to me!

Thank you. I understand now.

Ok, I guess I am just confused where the pressure goes from inside the spout. What causes the water to come out of the spout? Is it gravity or pressure or a mixture of both?

Picture an open cylindrical tank with a spout at the bottom from which water is flowing. Why is the pressure at the spout equal to the atmospheric pressure? I thought pressure increases with depth (i.e. rho*g*h). The explanation I have been given is that fluid that is exposed to the...

oh my gosh! How could I forget that! Thank you very much.. its been bugging me for three days now.

I understand that for a system to be in static equilibrium the sum of the forces and torques must equal zero. I understand why the torques must net out to zero but not the forces. For example, if you picture a wooden plank pivoted at the center with a small mass on the far left end and a very...