1. The problem statement, all variables and given/known data http://img245.imageshack.us/img245/7259/12214351.jpg [Broken] 2. Relevant equations 3. The attempt at a solution I have no idea, the previous lab i put gravity depend on location, but the teacher marked me wrong If anyone can give me some hints, and i need 3... I don't know if this 2 are right electrical resistance temperature ty!