Aqa unit 5 turning points official thread (unofficial markscheme)

Making a thread with all my calculations I remember all the calculation answers but for what questions a abit hard to remember but they are in order try get an unofficial markscheme going please fill in mistakes or blanks
1) 1130 me
B mass 2x10^27 kg
2 constant 1.21X10^-4
B 8100 years
3 energy of particle 6.1x10^-21
B 87526.5ms
4 energy of copper 16000j
Left over 13000j
Mass lost 5.6x10^-3
I got 1.69x10^#19 for the next calculation but can't remember question any ideas?
Wavelength of electron 8.5x10^-12
Speed of probe 2.58x10^8
2.55 years
I also have a 2x10^-27 saved but cannot remember what question it was for feel free to change I'm not Einstein

I got the $( c_{rms} )^2$ question wrong but I'm pretty sure the units are $m^2 s^{-2}$ as opposed to $ms^{-1}$.

I got 191 Mev for 1) and 3.39x10-28 for the mass

I got 191 Mev for 1) and 3.39x10-28 for the mass

Same as it gave you the binding energies and energy released is equal to the difference in binding energy, google says the average fission event is 200MeV so hopefully we are right

Everyone on the other threads say sane as me so I'll keep it for time been but if anyone else,says it's that I'll look into it

It gave you the binding energies per nucleon so you had to times by the number of nucleons

How did you calculate it as 1130MeV?
Because if you just took the binding energies away from each other, it was binding energy per nucleon. But I don't know why it was 3 marks anyway...

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Making a thread with all my calculations I remember all the calculation answers but for what questions a abit hard to remember but they are in order try get an unofficial markscheme going please fill in mistakes or blanks
1) 1130 me
B mass 2x10^27 kg
2 constant 1.21X10^-4
B 8100 years
3 energy of particle 6.1x10^-21
B 87526.5m^2s^-2
4 energy of copper 16000j
Left over 13000j
Mass lost 5.6x10^-3
I got 1.69x10^#19 for the next calculation but can't remember question any ideas?
Wavelength of electron 8.5x10^-12
Speed of probe 2.58x10^8
2.55 years
I also have a 2x10^-27 saved but cannot remember what question it was for feel free to change I'm not Einstein

What was the question about the probe? I don't recall this and have a feeling I've somehow missed this page?!

Making a thread with all my calculations I remember all the calculation answers but for what questions a abit hard to remember but they are in order try get an unofficial markscheme going please fill in mistakes or blanks
1) around 200ish mev
B?????
2 constant 1.21X10^-4
B 8100 years
3 energy of particle 6.1x10^-21
B 87526.5m^2s^-2
4 energy of copper 16000j
Left over 13000j
Mass lost 5.6x10^-3
I got 1.69x10^#19 for the next calculation but can't remember question any ideas?
Wavelength of electron 8.5x10^-12
Speed of probe 2.58x10^8
2.55 years
feel free to change I'm not Einstein

Last page about a probe going to a planet? You may have missed it :/

For the question did you have to use 1/3Nm =NKT and then the N's cancel out? Can't remember my answer

The question that you 1.69*10^(-19) was finding the work function of the metal.