Created by StemPy LabIn a new system of units, the unit of force is , the unit of length is , and the unit of time is . In this system, the unit of mass is equal to
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← Uranium-238 (Z = 92) decays through a long chain of alpha and beta (electron) decays and ends as stable lead-206 (Z = 82). The number of alpha particles given out along the whole chain is ____.A car is moving at 72 km/h when the driver sees a child step onto the road ahead. The driver takes 0.5 s to react and press the brake, and the brakes then slow the car steadily at 5 m/s². How far does the car travel from the moment the driver sees the child until it stops? →
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