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Helium [He]

 

velocity of sound = initial velocity * ( temperature / initial temperature )1/2
Initial Velocity (v0)
965 m/sec
96500 cm/sec
3473.99722080222 kilometer per hour (km/h)
1875.81155577672 knot(kn or kt)
2.91540785498489 mach (ma)
2158.7014683644 mile per hour (mph)

Initial Temperature (T0)
298.15 K
25 °C
77 °F

Velocity (v)
m/sec
cm/sec
kilometer per hour (km/h)
knot(kn or kt)
mach (ma)
mile per hour (mph)

Temperature (T)
K
°C
°F

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