Hi, I'm just doing my A-level physics revision and there's something I'm a bit unsure about. Lenz's law states that an induced EMF will always act to appose the change that is causing the EMF in the first place. However, if we take the example of a magnet falling through a coil that is part of...
Sorry to bore you all with this rate of change question, I really hate this area of maths and struggle to get my hea round it. Here it is, I'd be greatful for any help you have to offer:
Fluid flows out of a cylindrical tank with constant corss section. At the time t minutes (t is greater...
Hi, I haven't done vectors in a while and just wondering if someone could refresh my memory in solving this question for me:
line 1: r = (i + 2j - 3k) + m(4i - 5j -3k)
line 2: r = (4i - 4j + 3k) + n(i - 2j + 2k)
Point C with pos. vector (2i - k) lies on line 2. Find the shortest...
cheers for your help, altho I need to use the 3 because the original proof was by induction to prove f(x) = 3^(2n+4) - 2^(2n) is always a multiple of five, and I've been told to do it by:
f(k+1) - f(k) = f(k+1) - 4f(k) + 3f(k)
Iv proved f(k+1) - 4f(k) is a multiple of 5 by rearranging the...
hi, can someone try and represent:
3(3^(2n+4) - 2^(2n))
as a multiple of five. Been workin on it but I'm not very good at this sort of thing.
Cheers
Pat
I know that they are all the same, by 'properties/statistics' I did mean velocities etc. And by 'made' i was just referring to a delayed neutron being called so because it takes time to be emitted DURING the fission process. So then, do you know of any changes in VELOCITY of the neutrons that...
Hi, just unsure about a question I wonder if you can help me with: How do the neutrons released after nuclear fission differ from those absorbed to begin the reaction in the first place. I think this may be asking me about delayed neutrons, but this is more to do with how the neutrons are made...