Question: Answer the assignment 2 question and show step-by-step solution. This is from Chapter 9 from the book, The Essential Cosmic Perspective 8th edition by Bennett,

Answer the assignment 2 question and show step-by-step solution. This is from Chapter 9 from the book, "The Essential Cosmic Perspective" 8th edition by Bennett, Donahue, Schneider, Voit. I provided some helpful notes to help with the solution.

impact Energies 1 KE = zmv Assignment 2: Arelatively small impact crater 20 km in diameter could be made by a comet 2 km in diameter traveling at 30 km/s (30 000 m/s) speed. Assume that the comet has a total mass of 4.2 x 10'2 kg. What is its total kinetic energy? How many mega-tons of TNT (the unit used for nuclear bombs) is this equivalent to? (One megaton of TNT releases 4.2 x 10'5 joules of energy.) 'Pearson Educator, inc. Frequency of Impacts

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