Recent content by 9Vibes

Yes , but right now I am asking why is A at (-2,0) and not at (6,0)? For A is used in the later part B , I don't have the question with me now , so I can't really describe the part B of the question...

So here's how it goes. Find the coordinates of the centre and the radius of the circle x^2 + y^2 - 4x + 6y -12 =0 a)If the circle cuts the x-axis at the points A and B , find the length of line segment AB. My question is , I have actually found 2 points , they are (-2,0) and (6,0)...

@ Your first answer , what is the relationship between frequency and energy? Pi is that 3.142 thing.. ? Does that means that light is going straight , but the path it is moving is not straight , but bent? So to us it appears to be curved? And was the path that the 'ball' take spacetime...

Hi all , its my first post here in PF. Well basically , I have this really simple question (To you guys , but its hard for me). Why does Gravity affects light? In school , we are taught that gravity affects things that has mass. Now since light is composed of photons and since they are...