3 ms·
1 year ~= PI 10^7 seconds Earth's orbital diameter ~= 1000 light-seconds The PIs cancel! So Earth's orbital velocity ~= 0.0001c ~= 30 km/s
by mikhailfranco 6y ago
1 year ~= PI 10^7 seconds
Earth's orbital diameter ~= 1000 light-seconds
The PIs cancel!
So Earth's orbital velocity ~= 0.0001c ~= 30 km/s