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Physics 2010 Exam 2

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Ch 5-7
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Physics 2010 Exam 2
  1. Chapter 5: circular motion and gravitation
    1. Circular Motion
      1. centripetal acceleration
        1. ac=(V^2)/r
          1. F=(mV^2)/r
          2. Newton's Laws of Gravitation
            1. F= (Gm1M2)/(r^2)
          3. Chapter 6: work and energy
            1. Work
              1. W= F(delta r)cos(theta)
                1. Force displacement curve
                  1. W= delta KE
                    1. -W= delta PE
                    2. Kinetic energy
                      1. KE= (1/2)m(v^2)
                        1. Energy released
                        2. Potential energy
                          1. Energy stored
                            1. delta PE= PEi - PEf
                            2. Conservation of energy
                              1. KEi + PEi +W = KEf + PEf
                              2. Hooke's law
                                1. F= -kx
                                  1. PE= (1/2)k(x^2)
                                  2. Gravitation potential energy
                                    1. PE=mgy
                                      1. PE= (Gm1m2)/r
                                    2. Chapter 7: momentum, impulse, and collision
                                      1. Momentum
                                        1. P=mv
                                          1. conservation of momentum
                                          2. Impulse
                                            1. Impulse = F(delta t) = DeltaP
                                            2. 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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