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Only people who go to university can answer my questions. So do people have backpacks or what? coz i like still having my backpack also, do people think you're a gronk if you bring your own lunch in a lunch box. i still like to eat my daily sandwich without getting looked down upon and...

Why is technechium 99 used between 2 to 5 hours? (its half-life is 6 hours). i have no idea why you would use it between 2 to 5 hours can someone help me out please

Whats the answer? I put Y. am i right ?

so in that stupid pendulum question why do you graph L against T squared. whats the point of that? and also, what can you obtain from the line of best fit in that graph.? basically its the question from last years paper straight after the multiple choice. and what do you to that...

Hello. Does anyone have the answers to past papers, such as 2001 and 2002? If not all the answers, then just multiple choice.