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Do we have to derive y and x etc. all the time or is there some cases where you dont need to show them the derivation?

A projectile is fired with initial velicity V at an angle alpha to the horizontal. If the range is double the greatest height, a) find the value of alpha b) show that the range is 4V^2 divided by 5g Show that the max range is when it is fired so that the range is 4 times the...

Anyone have a sample response/essay on P&P AND LTA? I would be greatly appreciated if you could post it.

YOu shake the can and it heats up a bit? HOW?

Can someone confirm with me, this topic can be in the HSC right?

What happens when you shake the bottle and then opening the cap? Why does more gas come out when you open the cap when it is shook beforehand? Describe in terms of the physical/chemical process such as kinetic energy, etc.

ohok ty If feminists views are the POV's of females then what is a pscho analytistical view? Also would you describe how the idea is portrayed in that alternative POV like techniques etc.?

How do you incorporate other perspectives in your essay? Do you devote a paragraph to it or just use it to reinforce/(can it go against?) your ideas? Would you do a brief analysis with techniques/quotes/ideas presented or just state their idea e.g. The author (..........) has presented the idea...

is the answer x^3+1.5x^2+4.5x+5

which subject are you referring to mate

yep thanx alot:sun:

Yea i thought so, the answer is bugged unless it is for a diff question which is y=10sec(theta/2) I would attach the doc for the whole question but it keeps failing

The has these values for the graph x= 0 y =10 x=90(degrees, POI) y=10root2 x=180(degrees) y= 20

Ohh so it does start at 0? The answer has it starting at y=10 when x=0

thanx alot man butttt...... how come when you input x=0 in the equation you get y=0 thus the amplitude at x=0 is not 20 but 0 which does not obide with what you just said. So if i were to use a table of values i would get a diff graph how strange?

Can some1 show me with working how you would graph y=20sin(theta/2) for 0 < θ < pie :)

does anyone know what time and day it is for year 12 phys and chem

:eek:lol do the show part im struggling here

nice but how did you do it? also how do you integrate Square troot x e^(xrootx)

its in the cambridge textbook and its one of the first questions in the development part +1 rep to whoeva gets this