Change in gravitational potential energy of system
A 0.39-kg pendulum bob is attached to a string 1.2 m long. What is the change in the gravitational potential energy of the system as the bob swings from point A to point B in the figure, where θ = 33°?
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Another key to the well-being of children in divorced families is the children's relationship with their nonresidential parent, most often their father.
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