Express each of the following in SI units:
5 feet 2 inches (the average height of an Indian female).


5 feet 2 inches:
5 feet 2 inches = 62 inches

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Express each of the following in SI units:
93 million miles (this is the distance between the earth and the sun)


93 million miles:
1 mile =  1.60 kilometre = 1.60 x 103 m
93 million miles = 93 x 10miles

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Express each of the following in SI units:
100 miles per hour (the typical speed of Rajdhani Express).


100 miles per hour:
1 mile = 1.60 kilometre = 1.60 x 103 m


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A train covers a distance of 144 kilometers in two hours. What is the speed of the train in m/s.


Distance covered  = 144 kilometers
                           = 144 x 1000 m
Time taken = 2 hours  = 2 x 60 x 60 second

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Express each of the following in SI units:
0·74 Å (the bond length of hydrogen molecule).

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