Recent content by kopinator

My final answer is (πρd^3)/(3∈_o). This answer seems too simple though. Maybe this is only part of the answer?

Homework Statement Consider a pair of spheres of radius R with uniform charge densities ρ > 0 and −ρ located respectively at ~r+ = (0, 0, d/2) and ~r− = (0, 0, −d/2), with d < R. a)Find the electric field at all points in the region of overlap of the spheres for arbitrary d < R. Homework...

Actually, I have one more question: The Class B is more efficient, but has more distortion. Why is that?

Wow, that's great! Thank you for your help. I can turn this into another double-spaced page of info. Thanks!

I am writing a paper on Classes A and B push-pull amplifiers and was wondering if anyone would be willing to share some valuable insight into this type of circuit, i.e. advantages, disadvantages, when and where they can be used, etc.. Also, I have been doing a lot of my own research into this...

Ok, sweet. Thank you!

The best laboratory vacuum has a pressure of about 1.00 x 10-18 atm, or 1.01 x 10-13 Pa. How many gas molecules are there per cubic centimeter in such a vacuum at 293K? PV = nkT P/kT = n/V = N (# of molecules per cm^3) Since V is typically in units of m^3 or liters, should I make my...

A hypothetical planet Upiter orbits the sun. Upiter's semi-major axis is 5.2 AU. The mass of Upiter is .001 that of the sun. The eccentricity is 0.2. For this problem, ignore the other planets. d. Compute Upiter's speed when it is closest to the sun. I believe the equation I use for...

So would i only integrate from 0 to .0410 then?

A single-turn circular loop of radius R = 0.197 m is coaxial with a long 1740 turn solenoid of radius 0.0410 m and length 0.890 m, as seen in the figure below. (picture in URL)...

I figured it out. 21.65 m/s^2 was the correct value from the equation but I had to take into account that the wire is still being affect by Earth's gravitational acceleration so i took 21.65-9.81 = 11.84 m/s^2. Thank you for ur assistance!

ok. So i rearranged the equation to be ma/L=IB. Since the mass density is .520 g/m, I divided IB/.520 and got .02165 m/s^2. But when i plugged it in it was wrong. I converted .520 g/m to .000520 kg/m and solved and still got the wrong answer. What am I doing wrong?

A uniform horizontal wire with a linear mass density of 0.520 g/m carries a 2.70 A current. It is placed in a constant magnetic field, with a strength of 4.17×10-3 T, that is horizontal and perpendicular to the wire. As the wire moves upward starting from rest, what is its acceleration? Neglect...

A single-coil loop of radius r = 6.50 mm, shown below, is formed in the middle of an infinitely long, thin, insulated straight wire carrying the current i = 29.0 mA. What is the magnitude of the magnetic field at the center of the loop? B(loop)= μ_0_*I/2R B(wire)= μ_0_*I/2pi*d Superposition...

I think i figured out my problem. My was miscalculating my ε_0_ but I got it now. Thank you!