Recent content by michaelw

i don't know :/ lets say it goes from glass to air 1.5 = sin(theta) but what does that say about theta?

How will it bend? Or will it not bend at all?

I am really really hoping that the answer is wrong in the back of my book otherwise my entire basis for electricity/magnetism will be shattered :cry: Basically, there is a picture of a magnetic field going into the page, and there is a coiled loop within this magnetic field. If the...

thanks guys just to be sure again (replies may have confused me lol) f is (+) for a converging lens/mirror, (-) for diverging. always. do is (+) when its in the 'front', always di is (+) when it is a real image, always the front of a mirror is where you stand to look in the mirror...

This is a question from the MCAT, test 3R, and I am stumped as to why the answer is what it is. "A mass is lifted from the ground to an altitude h1, requiring work W1. The work to lift an identical mass to height h2 is W2. If h2 is twice h1, what is the ratio of W2 to W1? Assume force due...

Hello Im really confused on the signs for f, do and di in this equation.. Please tell me if I am correct.. but here is how i presently understand if For definition sake, the 'front' of a mirror is where you would normally stand to look in a mirror, and the 'front' of a lens (like a camera)...

ah youre right would you happen to know the equation of intensity for light?

I is intensity of a wave p is density of medium w is angular frequency A is amplitude v is wave velocity

The equation in the book reads I = (1/2)p(w^2)(A^2)v where w = 2pi*frequency

Hello Im trying to understand light, I did it briefly inhigh school and I am writing the mcat this august... and I am quite confused Is the wavelength of light at a specific frequency in water (n = 1.3) equal to the wavelength in a vacuum / 1.3? Why is violet light not bright? Intensity...

What happens? For example, in the image at http://theory.uwinnipeg.ca/mod_tech/img145.gif the moving charge moving counterclockwise will induce a magnetic field out of the page. if there is enough charge moving , can it completely counter the magnetic field, and then move in a straight line...

ah ok i think i understand now so basically this can all be solved using R=MV/QB that if b decreases, r increases, and vice versa, and speed remains the same

ah ha! thanks that helped a lot :) so.. please tell me this next statement is right to compensate for the decreasing magnetic field, the electron increases its radius to keep the flux the same.. since B = mv/qR, and B and R are decreasing, v must also decrease (by more than R) is that...

http://www.vaxop.com/pic.GIF is my little picture what is drawn is a magnetic field pointed N to S (left to right) the helical path shown is the path of an electron taken in that field my question is, why is that so? at the far left, the magnetic field is ~constant, and according to the...

argh so that means that they will change the magnitude of their velocity? There is a question on the mcat I am trying to solve it talks about the aurora borealis/australis and how they are caused by electrons moving in a circle due to Earth's magnetic field the period is how long it takes...