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if this particle reached the speed of light then due to einsteins laws of special relativity the particles length would contract to zero and would therefore, be invisible and unable to find. In this case the particle has exceeded the speed of light as its velocity is infinity. using the same law...

crap!!! found another lost mark ~79/84

i reckon i got ~ 80 /84 hopin evrythin goes my way. i stuffed up 4-unit. prob 80/120

yer i got that too

nah i was wrong. shit. i done the tangents are at right angles

Yeah answer is y = -a. cos pq = -1 and R [a(p+q),apq] use y = apq and sub in pq = -1 you get y = -a

same hear after q4 i kept doin q5 in da same booklet. had to rewrite it out.

i said that there are n-1 combinations the rooms can be filled. 1:n-1, 2 :n-2 .... n-1: 1 = n-1 ways and the students can be arranged in n! ways therfore arrangements are (n-1)n! prob wrong but who cares cant change it now