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20) answer is 0.11 cause of the curve it is not a straight line? when you find the area under the curve you used the equation of area of a triangle cause there no other way they have not even given us boxes so after finding the area of a triangle thats not it cause it not a proper triangle you missed a little bit so it makes it 0.11 and not 0.10 it would be 0.10 if it was a proper triangle but it is'nt got it?20) Answer is 0.11
21) Answer is correct Ty
37) Answer is proton
39) Answer is B
40) Answer is A
Btw ty
37) the guy has explained it quite well
39)(I am sorry about this one i messed up the paper i had many tabs open) sorry this one is B why you ask the closer you get to the nucleus the greater the charge field
so the closer the alpha particle to the nucleus the more the repulsion
40) sorry my method is correct but if you do it you get A *face palms*
if you derive the units for A B C D you get
A: N kg–1 * kg m–3*m*m^3 = (kg⋅m⋅s−2)kg–1* kg m–3*m*m^3= you get kg⋅m2⋅s−2 <----- which is joules If you do the others you won't
i did not do any of the calculations by i did give you the way if you followed it you would have got A sorry about saying B I had opened the wrong MS No wonder so many wrong my deep apologize I hope you get it now sorry again
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