00:01
All right, so what we're going to do for this problem is use our equation.
00:06
V is equal to k, q, divided by r, where v is equal to the voltage, k is our electrostatic constant, which is equal to 9 times 10 to the 9th newton meter squared over koulon squared.
00:27
Q is going to be our charge, and r is going to be our charge.
00:32
To be our distance.
00:33
And so when we're looking at our k, our constant, the units are going to be very important because you want all of your units to match up with each other.
00:44
And so in this problem, they give us a distance.
00:48
R is equal to 11 .3 centimeters.
00:52
We want to convert that over to meters.
00:54
And so we're going to divide by a hundred, so one, two, so 0 .113 meters.
01:02
And for our charge, they give us 2 .01 microcoums.
01:11
And so over here, that is just in regular couloms.
01:15
And so in the problem, they give us the conversion, where one microculem is equal to 10 to the negative 6 couloms.
01:22
So the easiest way to do this is just write 2 .01 times 10 to the negative 6 so now we're in meters, couloms.
01:35
Newton just comes with the constant...