Recent content by hibiscus23

Hello! Um...can anyone help me with this question? A woman can see clearly with her right eye only when objects are between 40.0 cm and 177 cm away. Prescription bifocals should have what power (in Diopter) so that she can see distant objects clearly (upper part)? Assume that the glasses will...

thanks...i actually realized how to do it when i looked through the chapter again...

um... so it's 1/2mv^2 = mgh? how would i get v? If i use conservation of energy, then I don't have to use E=mc^2? :confused:

Hi could someone please help me with this question. I don't know where to start. :rolleyes: A certain amount of energy is obtained from conversion of 5.00 grams of mass. How much mass could this energy raise to a height of 96 m?