26.. just talk about the constant speed of light meaning time and mass dilation and length contraction
e = mc^2.. energy can create matter, explanation for the big bang
quantum he explained the photoelectric effect (go into detail) thus changed scientific thinking about how energy is...
2006 was a very very easy paper
question 8 wasn't long and it was very very do-able
hope this years paper is like that :)
2000 was a killer
2003 wasnt too bad besides question 8
make y the subject and when u square root your going to get + and -
+ for top half of circle (positive y values)
- for bottom half of circle (negative y values)