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wait so if acceleration is up the plane then tension is greater than mg and when acceleration is down the plane tension is smaller than mg? so if the question about a dropping ball attached to a string, the acceleration is moving downwards so tension would be smaller? ugh why do they need to...

why is tension larger than 3gsinthetha

its from cambridge ext 1

Hey, could someone explain to me what tension is and does it oppose motion. For example in this question : Is tension moving up the rope from the pink block or down the rope to the pink block? Also why is the equation 3a=T-3gsin θ instead of 3a=3gsin θ -T

Two forces, of magnitude p newtons and q newtons, have a resultant of 2√7 N when they act at 90° to each other. When they act at 30° to each other, however, the magnitude of the resultant is 2√13 N. Find the values of p and q. This question is from the cambridge textbook. ANS : 2√3 and 4

How should I structure my responses? How do I adequately cover the question? And any exam tips? Also does anyone have practice papers they can share?

also do you guys think its worth taking 11 units to hsc or should i eventually drop to 10 units?

I know its only been 2 wks of yr 12, but I dont know if I can do 4u maths. I've got 11 units so should I drop it, or should I keep it for longer?

how do I do this question?? Sketch the graph of: (a) arg(z + i) = arg(z − 1) (b) arg(z + i) = arg(z − 1) + π ANSWERS : a) b)

how do i solve this : Suppose that the complex number z has modulus one, and that 0 < Arg z < π/2 . Prove that 2 Arg(z + 1) = Arg z.

i heard alot of ppl quit from delta

Year 11's coming to an end... just want to know if anyone's got any good study tips so I won't find myself stressing in the last minute (which is me rn:().

Thanks!!

How should I structure my response to question 1a for the HSC 2019 English Extension Exam? Link to the exam paper is here ...

how do I do this question? ANS : a =2, b=1/3, c=5/2

According to the data, which CPI expenditure group contributes most to the inflation rate? a.Food b.Health c.Clothing d.Housing Why is the answer D?

For example, a foreign investor purchases an agricultural property from Australia. Is this a credit on the capital or financial account?

"Discuss the impact of the changes in the domestic and global economy on Australia's exchange rate" HSC 2011 Q28 - How do yo identify arguments for and against the changes on the exchange rate. The question seems weird to me.

How would I do this question? A particle moves according to x=t^2-8t+7. What is the maximum distance from the origin and when does it occur : a) during the first 6 seconds ANS : 9m when t=4 b) during the first 10 seconds ANS : 27m when t=10

Sand being poured from a conveyor belt forms a cone with height h and semi vertical angle 60 degrees. Show that the volume of the pile is V = pi h^3, and differentiate with respect to t. At what rate must the sand be poured if its required that the height increase at 8cm/min, when the height is...