Recent content by jvdamdshdt

Hello Forum, I did an experiment on a Wheatstone bridge. We are to calculate the theoretical resistance of a given set of wires, then by using a value closest to the theoretical we are to set the resistance on a decade box. After the resistances are set we try to find the point on the bridge...

I do know the lens equation. 1/do + 1/di = 1/f . In question one the object at the focal length will produce an image at infinity. For question two I don't know if I am remotely close to getting the answer.

Homework Statement 1.Where would you place an object to obtain an image as far away from the lens as possible? 2. Suppose you have an image focused on a slide screen. You moved the image towards the lens. Which way would you move the lens to keep the image in focus? Explain Homework...

Thanks a lot. Sometimes I don't think.

We had a voltage vs time graph at the end. I am thinking this is the formula to find the charge? Q=CV

We were given a circuit with a resistor and capacitor. The circuit was then connected to an a ground on one side and a output voltage of 4V. We are asked to find the maximum charge of the experiment. I am thinking I am supposed to calculate the maximum charge using what is given.

Homework Statement Hey guys, I am having problems with finding the maximum charge of a capacitor. From the experiment we are given R=100 Ohms, and Capacitance = 330 uF We are asked to find the maximum charge the capacitor has. Time to half charge was 0.0235 sec. Voltage is 4V Homework...

I couldn't get it but thanks for your help. The answer was 100A and I have no idea where I am plugging the numbers wrong.

(F/L) * (2pi *r) / (Unot * I1) = I2 0.33 F/L * (2pi * 0.038m) / (4pi x 10^-7 * 87A) = 727 This is what I did but my answer is 727 A which doesn't seem reasonable.

Okay I have M/L = 8940 (rho) * pie * 0.0011^2 = 0.033 kg/m, using this is can find mg/L right?

I having trouble understanding. From the Force I calculated 2FCos30, the gravity counteract the force pushing up. Are you saying I need to find the mass and divide that by the length?

I am suppose to find the current through the copper wire on top. I tired finding the force and then rearranged the F= BIL formula to find the current. mass per unit length would be rho * g * volume?

Homework Statement In the figure (Figure 1) the top wire is 1.1−mm -diameter copper wire and is suspended in air due to the two magnetic forces from the bottom two wires. The current flow through the two bottom wires is 87A in each. Find the Current through the Copper wire. Homework...

So I've figure it out. Thanks SteamKing. Using sin θ = Vsound/Vobj . I found angle the the object. I've then continued with Tan θ = opp/adj . Adj = distance traveled in 60 sec. Mach 2.5 x 334 x 60 sec = 50400 m . Plug the angle and distance traveled into the formula Tan θ = opp/adj . I hope this...

I don't completely understand the shock wave and supersonic plane. My professor lectures and gives us a quiz then a homework to do on MasteringPhysics. He did not go over this portion but I've read the textbook. From my reading I think that the speed of the shock wave is it's own separate thing...