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So the big day is coming up, you've been slaving away practising (or not practising for those purists) your skills for the umat, only to be horrified you didn't bring proper id! i only just realised my passport was about 2 and a half years old yesterday; well my Australian one anyway, so now i...

"A particle of mass m is projected vertically upwards with a velocity of u m/s, with air resistance proportional to its velocity" So naturally, i assumed the forces working on the body were F = mg F = kv net F = - (mg + kv) and hence a = - (mg + kv)/m BUT the first line of...

"plz help urgeeeeeeent!!!11: Hai guyz, tutor me plz. Lols bio and math k. I want 80 uai plzplz!! Plz tell me if u cna tutor me, otherwize my parents will beat me :( kthxbye