Okay so I tried solving that equation each time for every filter. I started with simply cos(25)^2, Then used the answer as I0 for the next filter (So .82139*Cos(25)^2) etc.. I am still getting the wrong answer. Does the angle itself change between each filter? My interpretation is that the angle...
Homework Statement
A lens made of glass has one concave side with a radius of curvature of 5 cm, and one convex side with a raduis of curvature of 7.5 cm. What is the focal length of the lens? Is this a converging or diverging lens?
Homework Equations
nglass=1.5
nair=1.0...
Homework Statement
Unpolarized light passes through 4 polarizing filters. The polarizing direction of each filter is offset by 25 degrees from the filter in front of it. Find the fraction of light that gets through all four filters.
Homework Equations
I=I0Cos2θ
The Attempt at a Solution
From...
Sorry I know C is for capacitance I don't know why I did that, I still can't figure this out though. What term is supposed to be squared in this equation? It does give me the correct answer, it is supposed to be 256 μH.
Homework Statement
A capacitor is charged with a 12 volt battery until there is 3 μc of charge on the capacitor. The capacitor is then connected to an inductor. The angular frequency of the resulting oscillation is 1.25 x 105 rad/s. What is the value of the inductor?
Homework Equations
LC: ω =...
I honestly thought it was just the magnetic force, we've never done anything where I needed to know anything other than the magnetic field, velocity, and charge. Does gravity act as a force on a proton? And then you said it is like a centripetal force.
Okay so are you saying that I need to solve for the centripetal force, and that will be the force that I use in my equation 2? I'm still confused though, because the centripetal force formula requires me to know the velocity and the radius. I see why it would be a centripetal force, I just don't...