Recent content by Matt H

The diagram shows a straight wire carrying a flow of electrons out of the page. The wire is between the poles of the permanent magnet. The direction of the magnetic force exerted on the wire is: Please Note: My diagram isn't perfect but both magnets are the same size and the wire...

The explanation of this question is much more important to me than just the answer (I have an answer key for this practice test). Also, if someone could explain the different right hand rules pertaining to E&M and what situation(s) to use each in would be a HUGE help to me. I thought I...

Physics Final---Multiple Problems---Help Hey everyone, I have my physics final on Monday and I'm working through a practice test right now that is giving me a ton of trouble. If you can help with any/all of the problems i'd appreciate it. 1) Homework Statement 1)A 74 kg bungee...

Homework Statement If y(x, t) = (6.7 mm) sin(kx + (705 rad/s)t + ϕ) describes a wave traveling along a string, how much time does any given point on the string take to move between displacements y = -2.0 mm and y = +2.0 mm? Homework Equations I'm not sure where to start. The...

I think i figured it out. I solved the x component vector for the rain that is falling outside of the train which is 30(sin60) = x. This value is 25.98. Then, i just re-solved the vector of the train using the same formula, but substituting in the new angle which is 30(sin30) = x. This value is...

Your magnitude will be the Sqrt. of (2^2 + 5^2) which equals 5.39 units. It's basically the pythagorean thm. If you draw the vectors out you will have a leg 2 units long pointing straight up (north) and then you will have another leg 5 units long pointing in the right direction (east). Since...

question(s): These are questions from an exam i took earlier tonight, but do not know if i got them correct. 1) Rain is falling with velocity 30 m/s at an angle of 60° from the vertical and is blowing due east. If a passenger inside of a train (also traveling due east) observes the rain...