1) If you have the official A2 guide, I would just remember everything about mass spectrometry the book offers. Alternatively, this may be useful.
2) I have come across the same issues as you. I know the exact question you are talking about, it is about a students suggestion. I think I have the reason my teacher gave me as to why in my notes. I will try and find it for you.
Could someone please explain to me why the mass of a nucleus is less than the mass of it constituent nucleons?
To split the nucleus into its constituent nucleons, energy is required to overcome the strong nuclear force between its nucleons. As a result this energy is the work done on the constituent nucleons. Since energy and mass are equivalent according to E=mc2, this energy (work done), has an equivalent amount of mass that is added to the mass of the constituent nucleons because work was done on the nucleons.
To split the nucleus into its constituent nucleons, energy is required to overcome the strong nuclear force between its nucleons. As a result this energy is the work done on the constituent nucleons. Since energy and mass are equivalent according to E=mc2, this energy (work done), has an equivalent amount of mass that is added to the mass of the constituent nucleons because work was done on the nucleons.
Someone can correct me if I'm wrong because I'm not sure, but EMF= the rate of change of magnetic flux linkage, the rate of change of is greatest when the coil is parallel to the field.
Someone can correct me if I'm wrong because I'm not sure, but EMF= the rate of change of magnetic flux linkage, the rate of change of is greatest when the coil is parallel to the field.
Sorry ignore my previous reply, that's correct. If you imagine a graph of flux linkage against time (sinosudal wave) the gradient will be maximum when flux linkage is zero I.e. when cosθ=0 i.e when coil and field are parallel
hey, can anyone send me the g484 and g485 2014 papers and mark schemes, please? I'm self teaching so I have no access to these papers your help would be much appreciated! hows everyone feeling?
hey, can anyone send me the g484 and g485 2014 papers and mark schemes, please? I'm self teaching so I have no access to these papers your help would be much appreciated! hows everyone feeling?
They were uploaded on the second page of this thread, post 37.