Runner average acceleration
A world-class sprinter accelerates to his maximum speed in 3.8 s. He then maintains this speed for the remainder of a 100-m race, finishing with a total time of 10.3 s. What is the runner's average acceleration during the first 3.8 s?
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What is the percent uncertainty in the volume of a spherical beach ball whose radius is r = 3.84 0.10 m?
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Write the number 2,500,000 light-years in scientific notation. Write the equivalent number of miles in scientific notation. Please show workings.
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A box weighing 470 N is pushed along a horizontal floor at constant velocity by a force of 260 N parallel to the floor. What is the coefficient of kinetic friction between the box and the floor?
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