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Uh sure... Why not?

For the bolded part, why do we need to know delta V? What is delta P? Change in momentum? Impulse = force x time = Change in momentum...right? (Almost understand :P)

1. How do you determine the frequency of a mechanical wave from a graph? The graph has amplitude (cm) on the vertical axis and time (seconds) on the horizontal axis. 2. An electrical appliance draws 1.8A from a power source of 240V. How long will it take the electrical appliance to use...

Physics Energy in kilowatt-hours (globe) = power in kilowatts x time in hours 0.100 x 48 = 4.8 Energy in kilowatt hours (fan) = power in kilowatts x time in hours...

A rural water dam is to be emptied by means of a control valve. The valve operates so that the volume of the water, V litres, remaining in the dam varies with the time, t minutes, according to the equation dV / dt = -bt, where b is a constant i) Initially the dam contains 250 000 litres of...

So how come he divided the area up into two different areas here too?

I thought that didnt matter for areas between two curves. Or am I thinking of something else?

Can I ask why you have to separate it into two different areas to solve it? Can't it all be done at once by integrating: f(x) - g(x)?

int. x / (ln x) ? Help is much appreciated.

"Ali takes out a loan of $10,000 dollars to buy a car. He will repay the loan in five years paying 60 equal monthly installments, beginning one month after he takes out the loan. Interest is charged at 6% p.a., compounded monthly. Find how much the installment should be, correct to the nearest...

y = cos (x+pi/4) This fairly straightforward, the cos curve shifted pi/4 units to the left. I'm just wondering what happens when you add this to the equation... y = cos 2(x+pi/4) Is everything shifted twice as far? Any help is appreciated.

The reason why you are 500 dollars higher than the intended answer is because you added the 500 dollars he might have put in on the 18th birthday. However according to the answer, he didn't. That's the tricky part of these questions, i spose.

When I do the bolded part, I always get 48.29. Can you explain how you get 9.81 from it? 25/(sin pi/6) = 50, isnt it? And (sin 5pi/12) = 0.9659... right? I don't get how you came out with 9.8.

I'd have to say either English or Chinese. Atm, we're studying Othello, and it has totally changed what I think about Shakespearean plays. This one has a really intriguing plot and I just really like it. Chinese has always been an interest of mine. Kind of hard to explain.

Thanks! Unfortunately the English faculty doesn't mark my work in agreeance with you :(

"Far more fair than black" - this is a reference to the type of character and mannerisms Othello as opposed to his outward appearance. It basically compares his virtues of truth and trustworthiness to that of a white or "fair" person. This statement is given magnitude by the fact that it is...

Many thanks :] There's just one more I can't get: cosecx And the answer is -cos x cosec^2 x

Hey all. I'm a bit stuck with this maths question at the moment... From the derivative of sin x and cos x deduce the derivative of sec x. The answer is apparantly sin x sec^2 x. I'm really at a loss as to how to approach this. Any help is appreciated.

And what relation does it have to force, impulse, etc.? Silly question, I know, but I can't seem to get a decent textbook answer. If asked, what would your answer be?

Oh, right. That makes sense now, I think. Thanks.