4 ms·
Perhaps, the arc distance traveled for the wave is a smaller than the plane's. The plane is flying 10Km in the sky.
by yitchelle 9y ago
Perhaps, the arc distance traveled for the wave is a
smaller than the plane's. The plane is flying 10Km in the sky.
- joe-aws 9y agoThe difference in arc lengths is less than you'd think-- It's only about 20km further assuming Alaska is 1/3 of the world's circumference away from Australia. (1/3)*(2*pi*(r+10) - 2*pi*r) = (1/3)(20*pi) ~= 20
- yitchelle 9y agoWow, that is surprising. I should have thought about it further. The radius of earth is 6371Km and 10Km works out to be 0.15% of it. So 20Km is reasonable.