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### 9 Cards in this Set

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 Elastic Collision Use conservation of energy OR conservation of momentum: Ki + Ui= Kf + Uf pi=pf Inelastic or Partially Elastic Collision Conservation of Momentum ONLY: pi=pf Specific Gravity S.G. = (density fluid)/(density of water) (so water has a s.g. of 1) What is the Density of water? (2 forms) 1 gm/(cm^3) 1000 kg/(m^3) If Velocity increases, air resistance... increases If Mass increases, air resistance.... decreases (larger masses experience less deceleration) Energy can only leave/enter a sytem through... Work (w) or heat (q) How do ideal machines increase mechanical advantage? Amt. of work remains the same Force decreases b/c distance increases Atmospheric Pressure (3 forms) 1 atm = 760 torr = 101,000 Pa = 1 bar *if you are working in m/kg, use Pascals