Middle School Physical Science Quiz
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A pendulum bob has mass 2 kg. The lowest point of the swing is chosen as the reference level (h=0h=0 m). At each endpoint of the swing, the bob is 0.5 m above the lowest point. Using g≈10 m/s2g\approx 10\,\text{m/s}^2, what is the bob's gravitational potential energy at an endpoint (relative to the lowest point)?
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