Recent content by cpuwildman

Thanks for the help. Now, if I had the same circuit substituting an inductor for the capacitor, I would get i(t)=\frac{v(t)}{R}+\frac{1}{L}\int^{t}_{0}v(\tau)d\tau. Is this the governing differential equation for i(t) in the new circuit? I'm not sure because of the integral.

So then the governing differential equation would be i(t)=\frac{v(t)}{R}+C\frac{dv(t)}{dt}?

I know that a capacitor's impedance is given by Z_c=\frac{1}{\omega C}. If the circuit in question is driven by a DC voltage and a switch closes at t=0 to deliver the voltage, what should I use for \omega?

Do impedances apply for both AC and DC voltage sources?

I have an RC circuit driven by a voltage source. The resister and capacitor are in parallel. I'm having a problem figuring out the governing differential equation for the current of the circuit. I could figure it out easily if it were a series circuit as the current is the same for each...

For the sake of clarity, I will just post the whole question. A 10 g coin of diameter 1.3 cm is spinning at 16 rev/s about a vertical diameter at a fixed point on a tabletop. (a) What is the angular momentum of the coin about its center of mass? (b) What is its angular momentum...

I'm trying to calculate the angular momentum of a coin spinning about a vertical diameter about its center of mass. Given is mass, diameter, and angular velocity. I thought it would be L=\frac{1}{4}MR^2\omega. The angular momentum about a point away from the coin I thought would be...

I tried the torque method and summed all of the torques and came up with the force of friction for the left spindle as (MRa + 1/2mba) where M is the mass of the large disc, m is the mass of the axle, R is the radius of the large discs, b is the radius of the axle, and a is the acceleration. For...

How would I find the acceleration of the above spindles (both left and right instances)? The spindles are composed of two disks with a cylindrical solid axle. The left spindle is unwinding the string as it rolls and the right spindle is winding the string as it rolls. Static friction is present...

How would I find the acceleration of the above spindles (both left and right instances)? The spindles are composed of two disks with a cylindrical solid axle. The left spindle is unwinding the string as it rolls and the right spindle is winding the string as it rolls. Static friction is present...