kn a Cosmic Velocity 2nd

kn a mm/h | kn a cm/h | kn a mm/min | kn a Earth Velocity | kn a Cosmic Velocity 3rd | kn a ft/h | kn a Cosmic Velocity 2nd | kn a Cosmic Velocity 1st | kn a cm/min | kn a yd/h | kn a m/h | kn a mm/s | kn a Mach (20°C & 1 atm) | kn a M | kn a Mach | kn a ft/min | kn a cm/s | kn a yd/min | kn a m/min | kn a nmi/d | kn a km/h | kn a ft/s | kn a mi/h | kn a nmi/h | kn a kt (UK) | kn a yd/s | kn a m/s | kn a mm/d | kn a km/min | kn a mi/min | kn a km/s | kn a Sound velocity in water | kn a Sound Velocity in Sea Water | kn a mi/s