The average speed of helium at 25C is 1255 ms Convert this speed to miles per

The average speed of helium at 25c is 1255 ms convert

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7.The average speed of helium at 25°C is 1255 m/s. Convert this speed to miles per hour (mph). 8.How many minutes does it take light from the sun to reach Earth? (The distance from the sun to 9.Normal body temperature is 78.0°F. Calculate this temperature in degrees Celsius and Kelvin. 10.Bromine is a reddish-brown liquid. Calculate its density (in g/mL) if 586 g of the substance occupies 188 mL.
11.Aluminium is a lightweight metal (density = 2.70 g/cm3) used in aircraft construction, high-voltage transmission lines, beverage cans, and foils. What is its density in kg/m3? 3

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