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Hi all Just came across these questions in a few trial papers and can't seem to figure them out. Any help will be very much appreciated. 1) Show that √18 is the third term of an AP with begins as √2, 2√2,.... 2) For any sequence, the sum of the first n terms is given by: S(sub)n = n² - 5n...

bump ;(

Hopefully, someone can help me out with these questions: Explain with the aid of symbolic formulas how momentum is conserved in the following cases: A) Two cars colliding head on and coming to rest B) A car colliding with a cliff and coming to rest C) A small car colliding head on with a...

Thanks a lot ninetypercent, you were very helpful! Cheers

Any help with these questions will be very much appreciated. Q1] Find d if the line passing through (-2,-1) and (3,2) is perpendicular to the line dx + 2y - 3 = 0 (I know the gradient of the line is 3/5, and therefore the gradient of the equation dx + 2y - 3 = 0 must be -5/3, but I can't...

More troops are needed for peace? Hmmm! Have you ever heard of the phrase 'doublethink'? If not, I suggest you look it up because you seem to be suffering from it. :uhhuh: :uhhuh: It actually has nothing to do anti-American sentiments but rather it's about minor issues such as genocide...

You remind me of those heartless, devoid-of-compassion military generals. When asked questions about civilian casualties, the term 'collateral damage' is never far away. It's one of the buzz phrases in which the media lap up. Instead of reporting the reality of the situation, such as: '300...

You seem to have no problems with wars. But like all pro-war or war supporting imbeciles, you never get within a thousand miles of a bullet being fired or missile being dropped. It's all very good and well to say 'war is necessary' and 'wars always have collateral' when you don't live with the...

You find the systematic slaughter of millions of people a 'laugh'? Oh I get it it... just as long as it's not you! I laugh when people attribute something to an entire mass of people. Exactly who were the 'jews'? The Zionists or...?

Someone, perhaps, who has actually attributed something to peace? He has not only continued GWB's policies, he has expanded on them. Not only has he done nothing he said he would do, in most cases he has done just the opposite of his promises. Iraq 'withdrawal' became another 3-4-5 year...

You seemingly laugh at Iraq's predicament. Several independent counts estimate over 1 million have been killed since the slaughter began in 2003. Several more million have been displaced due to America crippling the country's infrastructure (in which the big boys back home get the huge contracts...

9/11 was an attack orchestrated by the highest levels of US government & intelligence agencies. The official conspiracy theory is so easy to pull apart that even a child could do it. Al Qaeda is a CIA invention and people in Intelligence know this. Al Qaeda literally means 'the base' or 'the...

Henry Kissinger, mass murderer & war criminal, also won the award in 1973... so Obama winning is par for the course. It's 1984 now, so everything is backwards: war = peace, slavery = freedom, ignorance is strength. For anyone who still thinks Obama is somehow different to all those who preceded...

Thanks fellas. Really appreciate the help!

Hey all Just wondering if you could help me answer some of these annoyingly simple questions: 1a) Find the final velocity of a vehicle moving initially at 15ms-1 and subject to a deceleration of -0.5ms-2 for 40s (is it -5ms-1?) 1b)Find the average velocity of the vehicle over this duration...