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Q. On electric field due to a disc of charge problem. right when he gets to The "u" substitution part he says the derivative for r^2+z^2 he gets that it is i missing something?

Solved • Jan 31, 2017

Q. Two charges q1 = 5 µC, q2 = -29 µC, are L = 18 cm apart. A third charge is to be placed on the line between the two charges. See more below...

Solved • Jan 19, 2017

Q. Two charges are placed between the plates of a parallel plate capacitor. One charge is +q1 and the other is q2 = +4.30 µC. The charge per unit area on each of the plates has a magnitude of σ = 1.19 10-4 C/m2. The magnitude of the force on q1 due to q2 equals the magnitude of the force on q1 due to the electric field of the parallel plate capacitor. What is the distance r between the two charges?

Solved • Jan 20, 2017

Q. What is the coefficient of friction?

Solved • Jan 23, 2017

Q. Water stands at a height h behind a vertical dam of uniform width b.

Solved • Jan 23, 2017

Q. A -3.50 nC point charge is at the origin, and a second -5.50 nC point charge is on the x-axis at x = 0.800 m.

Solved • Jan 17, 2017

Q. please help

Solved • Dec 14, 2016