Recent content by Quantum Joe

Homework Statement If the object distance in the following picture were 8.0 m and the image distance were 2.0 m, and the object is 0.50 m tall, how tall is the image. Ho = 0.5 So = 2.0 Si = 8.0 Homework Equations Ho / Hi = So / -Si In order these variables are hight object, hight image...

I think this belongs in homework help. I will post it there.

I don't see how that solves the problem.. I need remove the fraction on the left side and keep only Hi. Maybe I am approaching this wrong, if so could someone explain why? I know that 1/Hi is the same as H^-1.

I have a formula Ho / Hi = -So / Si The question is if I have this: 0.5/Hi = 2.0/8.0 how do I move the 0.5 numerator to the other side of the equation? What is the algebraic property that describes this? I realize this is a simple question but isn't it always the simple ones that get...