Recently Replied Questions

• BASIC QUESTION
  When a body is dropped, it falls with a speed proportional to its weight. Is it: (1) Always true (2) True only if objects fall in a vacuum (3) True only if objects fall through air (4) Never true ...
  0·11· #Physics#General Physics#Vectors Physics
  replied2013-07-25 05:58:25
• Refraction and amplitude
  When light enters water its amplitude changes. Why? ...
  0·3· #Physics#Optics
  replied2013-06-19 09:39:22