E=1/2mv^2
v= 18 mi/s = 29,000 m/s
Vol =4/3 x pi x r^3
dia = 8000m; radius = 4000m
Vol = 4/3 x pi x (4000)^3
Vol = 2.63 x 10^11 m^3
mass, m = density x Vol
m = 2650 x 2.63 x 10^11
m = 7.1 x 10^14 kg
KE = 1/2 x 7.1 x 10^14 x (29,000)^2
KE = 2.97 x 10^23 J
Bomb at Hiroshima had energy 63 x 10^12 J
equi # of Hiroshima bombs = 2.97 x 10^23/63 x 10^12 = 4.7 x 10^9 hiroshimas
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Nyx say: First, find out just how bad the impact will be.
http://www.purdue.edu/impactearth
Interestingly, a similar sized asteroid already has impacted near that region. It's now called the Chesapeake Bay.
http://www.space.com/22909-ancient-aster...
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Zardoz say: They'd have to evacuate the area from Boston to Detroit to Atlanta. The hole may only be 200k across but the blast zone will be bigger. That's not going to happen in six days.
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quantumclaustrophobe say: They'd probably enact protocols already set in the event of war - within 15 minutes, the higher-ups will be vacated to 'safe zones.' Then, once they're out - they may (or may not) announce the impending impact.
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Alex say: Idk man k man k
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