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1. ### Calculate the best angle for maximum light dispersion through a medium

I worked hard and actually believe I have solved it! So this thread can be closed :)
2. ### Calculate the best angle for maximum light dispersion through a medium

I first thought that the angle would have to be maximum when it is closest to the critical angle for total internal reflection. From my lectures the equation for the critical angle is ##\theta _1>\ sin ^{-1} \left( \frac {n_2} {n_1} \right),## so as ##n_2 = 1##, we have ##\theta _1=\sin...
3. ### How do I do this trigonometry vector calculation?

Thank you all! I approached this question wrong and I just couldn't see a different way to look at until you showed me! This often happens to me with physics questions, Cheers!
4. ### How do I do this trigonometry vector calculation?

Homework Statement A pilot wishes to fly at maximum speed due north. The plane can fly at 100km/h in still air. A 30km/h wind blows from the south-east. Calculate: a) The direction the plane must head to fly north. b) Its speed relative to the ground. Homework Equations Sine Rule...
5. ### How is current induced in the plasma in a tokamak?

Thank you! This is a great help!
6. ### How is current induced in the plasma in a tokamak?

For a Year 12 Assignment I have to do a seminar on how magnetic fields are involved with a certain topic. I chose nuclear fusion energy production and specifically the tokamak. I understand that a toroidal magnetic field is created when a current is sent through a solenoid wrapped in a torus...
7. ### Having trouble working out centripetal force?

I calulated part b and got 8.47m/s which seems right! I think the sheet has the answers for this question very wrong haha. Yes. It does indeed. I'm just going to go with saying the sheet is insanely incorrect.
8. ### Having trouble working out centripetal force?

Homework Statement The Russian Mir space station had a mass of 130 tonnes and orbited Earth at an altitude of 480km with an orbital speed of 7621.4m/s. The diameter of Earth is 12 760 km. a) What centripetal force was acting on it? b) Find the value of the acceleration due to...