User:MrWarnerTheGreat/Kingdom Hearts DDD - Comet Crash

Introduction

So it Giver's favorite Kingdom Hearts game, Sora can perform the move Comet, which summons a massive meteor to wipe the area of enemies. Time to give Kingdom Hearts its second town level calculation.

The Math

Forming our Equation

Sora's 14-year-old self is apparently about five feet, two inches, or 1.5748 meters.

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This makes the comet's diameter 16.4732368408 meters (Or a radius of 8.2366184204 meters). This gives us a volume of 2340.6444578004m³, or 2340644457.8cm³.

Given that rock is three grams per cubic centimeter, this makes the mass of such a comet 7021933.3734 kilograms. Quite heavy, meaning it hits with a ton of force.

The average speed of a meteor entering orbit is roughly 11000 m/s (We're using the low-end since we don't know the full timeframe for the feat). With all of this, we can now get the kinetic energy of this meteor.

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Final Equation

0.5*7021933.3734*11000^2 = 4.248269690907E+16 joules, that's equivalent to 10.1536082479 Megatons of TNT. That's a tenth into City level.

Conclusion

4.248269690907E+16 joules, or 10.1536082479 Megatons of TNT (7-B)