Recent content by Westin

Homework Statement If +6 (C) charge moves through a circuit element, and in so doing the charge loses 12 (J) of energy, then what is the magnitude of the voltage across this circuit element? A)2(V) B)6(V) C)12(V) D)72(V) For the same circuit element and situation described in question 1, is...

is it a rod? My homework is due at 8pm..

Is the first part right with a) and e) being true? and also what do i do for #2 instead?

Homework Statement A device consists of eight balls each of mass 0.78kg attached to the ends of low-mass spokes of length 2.2m, so that the radius of rotation of the balls is 1.1m. The device is mounted in the vertical plane. The axle is held up by supports that are not shown, and the wheel is...

Am I correct?

The answer was out of the page, thanks everyone.

Homework Statement A ball of mass m is thrown with a velocity v at a disk of mass M which sticks to the rim on impact.https://s3.lite.msu.edu/res/msu/perl_author/P3_PRELECTURE/L_CONSERVATION/IMAGES/CQ1.png For the system of the ball and disk, what is the total initial angular momentum about...

So who is right here? I only have one try

It would be going out of the page then??!? because it will be pointing upwards

Vector C will be perpendicular to both A & B. The angle will be between 0 and 180 degrees A x B = A B sin([PLAIN]https://www.physics.uoguelph.ca/tutorials/torque/theta.gif) not familiar with right hand rule but I'm trying to learn it right now

it is 180 degrees, I'm still a little lost of what the answer could be though..

Opposite to the momentum?

Cross product is r⃗A × F⃗ This helps you find torque

L = r x p L = same as momentum then ?

Unfortunately that info is not given, but if we assumed it was down wouldn't the answer just be same as momentum?