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Yeah it happens always during exams that your brain just stops!Thanks
but how do u know proton number decreases by 1 ? :/
idk wth is wrong wid me...i got it when i did it before but now m not
Can somebody help with any of these please:
)View attachment 54651View attachment 54652View attachment 54653
Thanks a lot ^.^View attachment 54660
This should help you realise it's dcos(Θ)
As for the square wave question, I'm not sure but is it D?
There are 5 antinodes given. That represents 2 wavelengths..
2*wavelength = 293 - 14 = 279mm.
wavelength = 279mm/2 = 139.5mm = 0.1395m
f = v/wavelength = 3.0x10^8m/s / 0.1395m = 2.2GHz
It's A.is it B?
Check the Grade thresholds of previous years. They have listed marks for every paper and grade.If I scored 'd' in my AS levels, and I did pretty well in paper 4 and 5 (75/100 and 27/30), then what is the maximum grade that I can score? Can I get an A?
Is the answer D?help pleaseView attachment 54663
It's A.
KE of Trolley + KE of Mass = Loss in GPE
I found it in a topical past papers book. The year was not written.Which year is it.?
Seems so.. I don't know the answer pIs the answer D?
Resultant force(F) = Crane Force(12000) - Weight(1000 * 9.81)
F = ma
a = F/m
a = 2190 / 1000 = 2.2
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