Assertion: heliosphere's wind | /r/HasAspect | typical velocity of 750 km/s
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Source sentences:
text: By contrast, the fast solar wind has a typical velocity of 750 km/s, a temperature of 8×105 K and it nearly matches the composition of the Sun's photosphere.
text: The fast solar wind has a typical velocity of 750 km/s, a temperature of 8×105 K and nearly matches the photosphere's.