Recent content by pradeepk

My apologies..it should work now

Homework Statement So I have to wire the circuit and find R2 by only making another voltage measurement. We know that R3 is equal to 1000 ohms. Homework Equations The Attempt at a Solution So I was thinking that you can find the voltage of R3 and the find the current going...

Ok so, since the induced EMF will be in the direction opposing the change, the induced emf would go from positive to negative so if it were connected in a circuit, the current would be induce a magnetic field in the opposite direction?

Homework Statement In my physics lab, we were asked to connect an unpowered solenoid to an oscilloscope and then move a magnet through the solenoid and observe the changes in voltage on the oscilloscope. First we were asked to move the north pole of the magnet into the solenoid and then the...

ohhh ok I feel stupid now. So if we know the are then we could use this way. My professor however on a different problem used A=2∏r^2 for the area of the parallel capacitors. That doesn't really make sense to me since they are rectangles..

Homework Statement A parallel plate capacitor has a capacitance of C=5.00pF when there is air between the plates. The separation between the plates is 1.50mm. What is the maximum magnitude of charge Q that can be placed on each plate if the electric field in the region between the plates is...

ohh of course..when it hits the ground its y position will be the negative of where it started. Thanks a lot. I don't know why I couldn't think of that

Homework Statement A ball of mass 0.3 kg is fired horizontally off the side of a building of height 10m at a velocity of 5m/s. Take the initial firing position as the origin. Find the angular momentum of the ball about the origin just before it hits the ground.Homework Equations L=r x pThe...

Homework Statement Three small squares, S1, S2, and S3, each with side 0.1 and centered at the point (4,5,7), like parallel to the xy, yz, and xz planes respectively. The squares are oriented counterclockwise when viewed from the positive z, x, y axes respectively. A vector field G has...

Homework Statement For the pendulum or spring and mass system at your station measure the period with a stopwatch Homework Equations The Attempt at a Solution So a period of a pendulum is when it returns to its original position after passing equilibrium twice. So I would...

ahh i see now, you would have a linear plot and the slope would give you half the acceleration. I never knew thought about relating these kinematic equations to the problem..thank you so much!

Well the equation that relates distance, time and acceleration is x=xo + vo(t) + 0.5at2. And since the cart starts at rest, it would be D=0.5at2. I am not sure how I can make a graph from this equation..it says the graph is supposed to be linear, but this looks quadratic.

Perform the following experiment, using the dynamic cart and track, XPLorer photogates meter stick and blocks. The track is set to an angle of about 5 degree of incline. Determine the acceleration of the cart from the time it takes to travel the following distances: 20, 40, 60, 80 cm. Use...

Thanks Guys! I just thought that 20 seconds was a very long time to make it stop, but I guess 5 Newtons is a very small force

Homework Statement A solid disk of mass 10 kg and radius 1 m is spinning around its central axis at a rate of ω = 20 rad/s. A force of magnitude 5 N is applied to the disk. Recall that the moment of inertia of a solid disk is I=(1/2)mr^2 . (a) Draw the disk and indicate the direction of...