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a. You step onto a hot beach with your bare feet. A nerve impulse, generated in...

a. You step onto a hot beach with your bare feet. A nerve impulse, generated in your foot, travels through your nervous system at an average speed of 101 m/s. How much time does it take for the impulse, which travels a distance of 1.33 m, to reach your brain? _____ s

b. An 18-year-old runner can complete a 10.0-km course with an average speed of 4.50 m/s. A 50-year-old runner can cover the same distance with an average speed of 3.87 m/s. How much later (in seconds) should the younger runner start in order to finish the course at the same time as the older runner?

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