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rainy365days

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**1. ______ stands on the Earth's equator. Calculate his tangential speed. The Earth has a radius of 6.38 x 10^6 m. What is ______ centripetal acceleration?**

**2. 2∏r/T (Circumference/Time) and V2(squared)/r. (Velocity Squared/Radius)**

I don't even know how to start this problem.