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Describe the fetch-execute cycle.

+1

haha I dont even know anymore...just gonna leave it cause you cant change it now and no point dreading about it still found it to be a good exam though :)

We should still get 2 marks if we said the mass from Tower A dropped straight down, right?

Re: General Thoughts: Physics It makes sense with your working but we must have calculated our efficiencies differently :/ I got around 6 MW for B and 3 MW for C so with my working its correct as well...wonder how theyll mark it

whatever helps you sleep at night

That was the whole point, you have to imagine that the particle is stationary and the anode is moving towards it, not the other way around. So if it asked from an observers perspective then it would contract but from the electrons perspective it would increase. Bad example but if youve ever seen...

Really fair exam imo but 2 things... It didn't ask about price, so C was actually the best choice because of its efficiency and also for that length contraction one it was 40.2 cm because it was asking from the electron's point of reference. I came across a question very similar to this one...

Significance In some experiments, the charge-to-mass ratio is the only quantity that can be measured directly. Often, the charge can be inferred from theoretical considerations, so that the charge-to-mass ratio provides a way to calculate the mass of a particle. Often, the charge-to-mass ratio...

What was the significance of J.J. Thompson figuring out the charge to mass ratio of the cathode rays (electrons)?

Oh wow you're right, the change in flux will actually drag the magnet down Good catch haha :)

^that is correct but you should also note that as the magnet is pushed up due to the meissner effect as the superconductor gets cooled, a change in flux occurs and a current gets induced in the superconductor which helps the magnet levitate even more

For the first part, to be honest I've never even seen B = kI/d but I managed to derive it (kinda) You should recheck your formulas. It's F/l = kII/d and the other one is correct. After playing around with them I was able to change it into the one you said F = lkI^2/d and F = BILsin() BILsin() =...

to dilate means to increase, dont get confused

BUMP

Genius! Thank you :)

I know the textbooks say that they can be either or but the way I see it, if they're used as a switch then they are 'amplifying' current. And when they say amplifying they really throw me off because I picture it as the current just increasing in energy out of nowhere...am I right to say that it...

Although I understand this, I just don't understand why the lattice can only distort in a superconductor cooled below Tc? Why can't the lattice be distorted in a normal conductor? :/

Equations of motion are: x = 0 y = Vt - 4.9t^2 y = 10t - 4.9t^2 vertical velocity is given by: Vy = 10 - 9.8t Ball reaches maximum height when Vy = 0 i.e. 0 = 10 - 9.8t t = 1.0204 seconds then silly Mysterious S decides to be a kent and reduces radius of earth to 6400000/4 now to find our new g...

You can but you probably shouldnt if you dont understand why you're using it What I would do to be safe is get an expression for t and then sub it into another equation i.e. x = Vtcos() 75 = Vtcos(23.2) t = 75/Vcos(23.2) then sub that into y = Vsin()t - 0.5at^2...