u/Rhoobzzz

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- Hang Ho just threw a pebble to hit a satellite. We will calculate the required kinetic energy; for reference, we will assume that the Earth has the same diameter as ours, namely 12,742 km in diameter. And for the pibble let’s gonna say it mass is 20 g

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- Length traveled by the stone : 967,7259 km

For the timelaps we gonna assume that the rock either traveled in 10s and in high ball 1s so :

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- Ke formula :

-Ke : 0,5×m×v^2

-Ke : 0,5×0,02×96 772,59^2

-Ke : 93 649 341,753081 j or 0,02238 T of tnt

- 9A (small building lvl)

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- High ball :

- Ke : 0,5×0,02×967 725,9^2

- Ke : 9 364 934 175,3081 j or 2,238 T of tnt

- High 8C (large building lvl)