On Feb. 15, 2013, a small asteroid entered Earth's atmosphere over Chelyabinsk, Russia, and startled onlookers with its fiery appearance and shockingly loud noise. 1. What is the straight-line distance the meteor traveled through Earth&'s atmosphere? 2. Compute the volume of the asteroid, assuming it was nearly spherical.
3. Compute the density of the asteroid. What does this tell you about the physical composition of the asteroid? Is it primarily ice? Rock? Iron? 4. How much energy was released by the event? Give answer in Joules and kilotons.
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