Recent content by blackbyron

Hello, I was diagnosed with language disorder(learning disability) since I was a kindergarten. I am having a lot of trouble with reading and writing, and also have poor communication skills when it comes to meet people in general. It also affects my schoolwork no matter what subject I'm...

Thanks for your help.

I see, I look at my teacher's notes and saw the exact equation. So to solve for Savg, it only cares about the maximum values right?

Homework Statement Homework Equations Savg = Em * Bm / (2*μ0 * c) The Attempt at a Solution I solved for S avg without calculating inside the cos, but I got it right. The z and t is given, but is there the reason why you don't solve inside the cos, or is it the bug? it's...

My grades are based on labs, homework, and tests. Homework I understand it, labs = okay, test --> not really HW 25% labs 15% tests 60% I feel like I understand most of of things. My teacher allows me to have 2 page of cheat notes on the test. I put down all formulas, all basic concepts...

Hello, I'm now enrolled in a class that talks about charge, electric field, magnetic field, and inductance. I really need help on how to study smart for physics test. I've been studying physics for 2 weeks until the test. Every time I took it, I still get the low scores on the test. The...

Thanks for your reply, Yes I did learn the right hand rule, and I mostly understood them. But I think I understand how to do it since my friend helped me. But thanks for the link. I'll look into it for future use.

Thanks for your reply, yes I think I did that, though, but somehow I did B= B * i(hat) + B* j(hat) Is that right, because I'm getting one wrong. I think I'm not understand this.

Homework Statement Wire #1 carries a current of 8.0A along the +x-axis. Wire #2 has a current of 6.1A along the +y-axis. What is the magnitude of the magnetic field at the point (1.4,1.3)m Homework Equations I'm not sure if Long straight conductor will be the right formula to solve for...

bump I got the current, and the length. I'm still having trouble with finding the right B*sin(phi).

Homework Statement A wire of length 95m and a diameter of 2.4mm has a total resistance 1.59Ohms. The potential difference between the ends of the wire is 103volts. A section of the wire 15.5cm in length is bent into an arc of 60deg. The magnetic field is parallel to the bisector of the arc and...

Thanks for your reply But how do I find out out the max Q if q and t is unknown?

Homework Statement A 4.1e-6 capacitor is connected in series with a 36V battery and a 851 ohlms resistor. At t= 0 the capacitor is uncharged. At what time will the capacitor have 80% of its maximum charge? Homework Equations I = V/R Q = CV I = Q/t The Attempt at a Solution I...

Now I'm getting it. Just find out the net Electric Field and there I go. Thanks. I appreciate your help :) sorry not "ro > r >ra" meant to say "ro > r > ri"

EDIT: I think I got it. The location of the electric field will be inside the inner shell near the point charge. Now the Electric field of the charge 72 is zero because ro > r > ra. Is that right? Then I use a point charge to find the electric field. Not sure I'm making sense...