The speed of light in vacuum is 186000 mis 30e8 ms use, Ask an Expert

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The speed of light in vacuum is 186000 mi/s = 3.0E+8 m/s. Use this fact to find the number of kilometers in a mile.

a)_____km/mi

b) The weight of 1.00 ft³ of water is 62.4 lb, and 1.00 ft = 30.5 cm. Use this information and the fact that 1.00 cm³ of water has a mass of 1.00 g to find the weight in pounds of a 1.00-kg mass. _____lb/kg

3) The mass of one uranium atom is 4.0 multiplied by 10^-26 kg. How many uranium atoms are there in 4 g of pure uranium?

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