Recent content by MSZShadow

Ah. You're right. E wouldn't be constant... That would mean that the graph of V against l wouldn't be linear as well... Alright. I'll see where I can get with that. Starting with solving for the linear density... ... Alright. Got it. The answer to part A is 96070.57423 V/m. Thanks. :)

Homework Statement Electrostatic precipitators use electric forces to remove pollutant particles from smoke, in particular in the smokestacks of coal-burning power plants. One form of precipitator consists of a vertical, hollow, metal cylinder with a thin wire, insulated from the cylinder...

Nevermind. I had the figures right, but somehow calculated it wrong. The problem has been solved now. :)

Ah. I had written that equation wrong in the problem statement/etc. Lovely. It looks like I had calculated it by integrating E, as opposed to F anyway. And, I see where my sign went wrong. Products of a tired mind... Thank you for clearing that up. :) Edit: My textbook says that the...

Homework Statement A point charge q1 = 4.10 nC is placed at the origin, and a second point charge q2 = -2.95 nC is placed on the x-axis at x =+ 20.0 cm. A third point charge q3 = 2.00 nC is to be placed on the x-axis between q1 and q2. (Take as zero the potential energy of the three charges...

Same. Now that I look at it (through my sleepy eyes), the 'hypotenuse' is shorter than one of the legs, and by a good bit, too...

A good idea here is to read the problem carefully, and/or make a simple diagram. You're correct in using the Pythagorean theorem for this problem, but you're using it incorrectly. Remember that the form is a^2 + b^2 = c^2, where c is the hypotenuse. In the problem statement, you're given a =...

Thanks. I had the feeling it was something like that, but I'm always so insecure with physics, so I doubt my thoughts on it too frequently... I've successfully solved the problem now. :)

Homework Statement A) How much work would it take to push two protons very slowly from a separation of 2.00*10-10 m (a typical atomic distance) to 3.00*10-15 m (a typical nuclear distance)? B) If the protons are both released from rest at the closer distance in part A, how fast are they...