Physics, 24.06.2019 18:40 Cate9216

The energy yield of a nuclear weapon is often defined in terms of the equivalent mass of a conventional explosive. 1 ton of a conventional explosive releases 4.2 gj. a typical nuclear warhead releases 250,000 times more, so the yield is expressed as 250 kilotons. that is a staggering explosion, but the asteroid impact that wiped out the dinosaurs was significantly greater. assume that the asteroid was a sphere 10 km in diameter, with a density of 2500 kg/m3 and moving at 30 km/s. a. what energy was released at impact, in joules? assume all kinetic energy of the asteroid to be released. express your answer in joules. b. what energy was released at impact, in kilotons? assume all kinetic energy of the asteroid to be released. express your answer in kilotons.

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