Pilot

How high is the airplane's pilot to see 0.001 of Earth's surface?

Correct answer:

h =  12.7816 km

Step-by-step explanation:

R=6378 km S1=4π R2=4 3.1416 63782511185932.5225 km2 S=0.001 S1=0.001 511185932.5225511185.9325 km2  S = 2π R v v=S/(2π R)=511185.9325/(2 3.1416 6378)=2503189=12.756 km y=Rv=637812.756=6365.244 km x=R2y2=637826365.2442403.1784 km   x/y = (h+v)/x h+v = x2/y h=x2/yv=403.17842/6365.24412.756=12.7816 km



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