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main-sequence stars
2/3 x 1.5 hr = (2 x 1.5 hr) / 3 = 3 hr / 3 = 1 hr
45km/hr
8.44 kph Algebraic Steps / Dimensional Analysis Formula5.25 mi/hr*5280 ft/hr 1 mi/hr*1 m/hr 3.2808 ft/hr*1 km/hr 1000 m/hr=8.449055999 km/hr Direct Conversion Formula 5.25 mi/hr*1.609344 km/hr 1 mi/hr=8.449055999 km/hr
47.22421061 mi/hr. See complete algebraic steps below: 76 km/hr*1 m/hr 0.001 km/hr*1 ft/hr 0.3048 m/hr*1 mi/hr 5280 ft/hr=47.22421061 mi/hr