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a 4*10^4 kg roller coaster starts at rest. neglecting friction, calculate potential energy relative to ground, kinetic energy and speed at point b
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A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?
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Language is not the only way that humans communicate. describe how we use sound, touch, chemicals, and sight to communicate. need answer asap
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By examining a wave’s pattern after it interacts with a barrier or gap, measurements can be made to better understand certain wave phenomena. what is a broad question you can answer by doing this experiment?
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a 4*10^4 kg roller coaster starts at rest. neglecting friction, calculate potential energy relative...
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