Search results

Putting my money on Einstein/Plank political/social forces

Yea the right hand coil rule, its weird to picture at first, but its just a magnet with a coil around it. So, for the left magnet on (B) your fingers will curl into the page and thumb points to the left, so south pole on the left magnet. Same for the other side, thumb will point left hence it...

You're right for the first one (A). Using the left hand palm rule our thumb will point into the page since cathode rays are a stream of negatively charged particles (thumb represents conventional current), fingers will point in the direction of the north pole, thus palm will be facing up so it...

My teacher says we should prove them before we use them since they're not apart of the provided formula sheet :-/

Using B = kI/d we can calculate that the magnitude of the magnetic field strength at both P and Q (5x10^-6). Substituting into option A and B is untrue, so I would rule them out. That leaves option C and D, it makes sense that the further we move away from the wire, the weaker the magnetic...

In stage one Thomson attempts to calculate the velocity of the cathode rays by turning on the magnetic field and electric field such that the cathode ray passed through undeflected. |Fe| = Fb Eq = qvB (note theta = 90, sin90 =1) v = E/B (where E and B are known values) Stage two he set out the...

Could someone explain to me why the answer is B? Thanks :jump:

How would you know if your marking is accurate especially for the older papers with no sample answers and only marking criteras

Addressing the parabolic motion, yes that would be correct to an external observer outside that frame of reference, however the questions states that the student is inside the train and will simple see ball fall straight in the line of motion. As for the opposing force, I think they just mean...

Solar cells consists of a p-type and n-type semiconductor joined together. The free electrons in the n-type will diffuse across the p-n junction to fill the holes in the p-type semiconductor. This causes the n-type to become more positive and the p-type to become more negative setting up an...

Would you talk about how the rotation provides a normal reaction force on the astronaut. Thus a sense of gravity, as opposed to no reaction force the astronaut will appear to be "free falling". Also the centripetal force there is a force acting towards the centre of motion and according to...

Could someone tell me how emission spectra form and the type of spectra Quasars produce

Does anyone remember what answer they got for the Q11 volumes question. X=Y(6-Y) about x axis

We were blessed with no perms and combs and no probability [emoji108]

Clean up the 2z/2+i first by multiplying by its conjugate. Then basically rearrange making Z the subject. 2z(2-i)/5 + (3-2i) = (1-i)z 2z(2-i) + (15-10i) = 5z(1-i) z = (15-10i)/(1-3i) [Times by conjugate] z = (45+35i)/10 z = 9/2 + 7i/2

1 [emoji55]

Someone already posted it in the other post: http://community.boredofstudies.org/1112/biology/329500/general-thoughts-biology-5.html

I talked about Mendel, Sutton/Boveri and Morgan. Walk out of the exam and my teacher was like Mendel's not a scientist he was a monk. At least I still have 3 :)

That feel when you walk out of the exam and your answers don't include some of things everyone else included. Made some sillies with mc estimating 16/20 Short answers didn't go quite well as I wanted to as I forgot to mention things in some of my answer. Communication was fairly easier just...

What do you guys think the RAW mark for a band 6 will be? Just curious :3