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Physics 2010 Exam 2

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Ch 5-7

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	Created by carir almost 12 years ago

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Physics 2010 Exam 2

Chapter 5: circular motion and gravitation
1. Circular Motion
2. centripetal acceleration
  1. ac=(V^2)/r
  2. F=(mV^2)/r
3. Newton's Laws of Gravitation
  1. F= (Gm1M2)/(r^2)
Chapter 6: work and energy
1. Work
  1. W= F(delta r)cos(theta)
  2. Force displacement curve
  3. W= delta KE
  4. -W= delta PE
2. Kinetic energy
  1. KE= (1/2)m(v^2)
  2. Energy released
3. Potential energy
  1. Energy stored
  2. delta PE= PEi - PEf
4. Conservation of energy
  1. KEi + PEi +W = KEf + PEf
5. Hooke's law
  1. F= -kx
  2. PE= (1/2)k(x^2)
6. Gravitation potential energy
  1. PE=mgy
  2. PE= (Gm1m2)/r
Chapter 7: momentum, impulse, and collision
1. Momentum
  1. P=mv
  2. conservation of momentum
2. Impulse
  1. Impulse = F(delta t) = DeltaP
3. Collision
  1. Elastic
    1. Objects bounce off each other, energy is not conserved.
  2. Inelastic
    1. Objects stick together, energy is conserved.

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