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also are they legit strict abt the 93 atar or nah (just wondering)

anyone selling their essays? mod c

lol thanks :) school rank : 30 ish eng adv: 20/140 3u maths : 60/120 4u maths: 30/63 physics: 35/77 bio: 10/82 chem: 50/116

so I know that changing flux according to faradays law produces an EMF. And eddy currents arise from changing flux. So do eddy currents induce because of faradays law or nah?

so if the question asks for direction of induced current, do we always think of Lenz's law? so we always answer that its clockwise/anti since there will be an eddy current how would I do the attached one? do I use right hand palm rule and oppose the force or grip rule?

so to prove that aluminium oxide is ampiphrotic, I want to show it by equations but which ones do I use? can you show how I can use the fact that water is amphiprotic, to demonstrate this? thanks!

so apparently for sulphuric acid it dissociates two times and first its: H2SO4 + H2O → H3O+ + HSO4- HSO4- + H2O ↔ H3O+ + SO4 2- but the equilibrium is to the left. and the overall reaction is:H2SO4 + 2H2O → HSO4- + 2H3O+ + SO4 2- how do they get this overall reaction?? thank you <3

how do I figure these out using right hand rule (or do I use right hand grip rule??) thank you

so if we have the equation of ammonia synthesis: N2 + 3H2--> 2NH3 and the volume of the reaction vessel is halved 10 seconds after the reactants are first mixed. Skeych a graph of Nitrogen and Hydrogen concentration vs time Start the graph at the time when the reactants are first added and...

Two circles of radii 3cm and 4cm have their centres 5cm apart. Calculate the area common to both circles correct to 2 decimal places. we use minor segments but I'm not getting the answer 6.64cm squared

is it the same as cos inverse 0.28? how does the minus sign affect things and how can I visualise this using quadrants and stuff thank you

show that z^5-1/ z-1 = z^4 +z^3 +z^2 +z+1 also show that z^5-1/z-1= (z^2-2zcos2pi/5+1)(z^2-2zcos4pi/5+1)

need help with these pls integrate bewtween y=|x^2 -3x +2| and the x axis, between x=0 and x=3 area between x^2=4y and y^2=4x (confused about if we should integrate y or x) area between y=-x^2+4x-3, y axis and the lines x=4 and y=4

whats the area between: y=underroot(2x), y axis and the line y=4 ans:32/3 and area between x^2=4ay and its latus rectum

so I have the equation 2x^3 +3x^2 +x -5=0 when I sub in x=1/square root (y) then the answer should be 25y^3 -31y^2 +5y -4=0 but I cant seem to get that also when I sub in x=root y, I should get 4y^3 -5y^2 +31y -25=0 but how thank u

The equation x^4 -5x^3 -9x^2 +ax +b =0 has a triple root. Find a and b and hence all roots of this equation.

help pls a) if d^2y/d^2x = 6x+4 and dy/dx=8 and y=2 when x=1, find your site a function of x b) if f''(x)=x, f'(2)=1 and f (3)=0, find f (x) c) if f''(x) =-2x and the curve y=f (x) has a stationary point at (2,6), find the equation of this curve thank uu

what pathway? Could I do medicine and major in Psych or Neuroscience so I can get a masters? or should I do psychology and then a masters in it? or would it be better to do neuroscience through medicine, to have more vast knowledge?

how would I account for ionisation rate Calculate the pH of 0.05 mol L-1 citric acid if it has an ionisation rate of 50% thank you :)

just wondering - for a dotpoint like this Assess the evidence which indicates increases in atmospheric concentration of oxides of sulfur and nitrogen should I remember statistics and stuff? or do they usually not ask/need that? like even for internals, could they ask smth for which we would...