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1. A world-class mile runner can run 1 mi in a time of 4 min. What is the runner's average speed in units of mi/h

1. A world-class mile runner can run 1 mi in a time of 4 min. What is the runner's average speed in units of mi/h and m/s?

2. How many seconds are there in the month of July?

3.

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2.43 The standard acceleration of gravity at the earth's surface is g = 9.81 m/s. Convert this acceleration to units of ft/h and mi/s

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