Search results

validity: am I measuring what I think I am measuring? reliability: will someone else obtain the same result as me?

I wouldn't bother, I used jacaranda, and also hsc online, thats got all the information you need to understand, couple these two together and your set

yeah i got this, turned out nice at 0.75 x 10 ^ 6 MJ

i got around there, 2.3 or 2.5cm can't remember exactly

well either way... with writing like that, i doubt you'll score well, other than that what others have said, questions pretty straight forward

Acceleration on earth, we take as a constant 9.8, (yes okay it varies over the earth, but at the point where its droped is a constant), so yes velocity increases, however gravity is always a constant 9.8, and seeing as the graph wanted is an acceleration-time graph, B shows the constant...

Agree for the most part, except 7, which is D, cause its perpendicular to the magnetic field (NOT at 45 degrees, as you would believe) and 15 is A, aluminium, worked out by using forumlas, (you get frequency as 1.6 and 2.5 eV, hence Al That is all...