A nonconducting solid sphere of radius 2.30 cm carries a uniformly distributed positive charge of 8.00×10-9 C. Calculate the magnitude of electric field at 1.60 cm away from the center of sphere
The Attempt at a Solution...
I now got it correct - thank you for your help. I actually tried to use that formula earlier with no success - this time I found that I had been forgetting to square my distance in my calculations. Thank you again for your assistance.
q1 = 1.05 × 10 -7 C is fixed at the base of
a plane that makes an angle with the horizontal direction.
A ball of mass m = 1.15 g and a charge q2 =3.10 ×
10-8 C is placed into a frictionless groove in the plane
that extends directly to the fixed charge. It is allowed to move up and down...
Do you mean I should have the equation: mgsin(theta)=(8.98*10^9)(q1)(q2)/(d^2) instead? I also tried that and have also been unsuccessful. Or is my mistake somewhere else? Thank you for all your help so far.
Well, I do not know theta, the length of the ramp nor the height of the ramp. However, you are correct in that theta is the only unknown I need to solve for. I have been trying mgsin(theta)=(8.98*10^9)(q1)(q2)/[(d^2)(sin(theta))]; however, I have been obtaining the wrong answer. I know m, g, q1...
Distance in terms of height and theta => Normally I would use the sine function. That is
In this instance I know what the hypotenuse is; however, I am not given height and the problem is to find theta. i.e. I know that the ball is 13 cm up the ramp. Since I do...
A ball is at a known height on a certain ramp with an unknown angle theta. The ball has a known charge and a known mass. There is also a known charge at the bottom of the ramp. I am supposed to find the angle theta.