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nlexa [21]
3 years ago
14

The total amount of fresh water on earth is estimated to be 3.73 x 10^8 km^3. What is this volume in cubic meters? in cubic feet

?
Physics
2 answers:
Brilliant_brown [7]3 years ago
6 0

The total amount of fresh water on earth is 3.73 *10^{8} km^3

 Hence the volume of water v= 3.73*10^{8} km^{3}

we are asked to convert this into cubic metre and cubic feet.

we know that 1 km = 1000 m.

                     1 km^3 = [10^3 m]^3

                     1 km^3 = 10^{9} m^{3}

       we have been given  v = 3.73 *10^{8} km^3

                                            v = 3.73 *10^{8} *10^{9} m^{3}      

                                              v = 3.73*10^{17} m^{3}  [ANS]

Now we have to  convert it into cubic feet

we know that one metre =  3.28083 feet

                   1 m^{3} =[3.28083feet]^{3}

                    1 m^{3} =35.3143472 feet^{3}

         Hence  v =3.73*10^{17} m^{3}

                       = 3.73*10^{17} *35.3143472 feet^{3}

                  ⇒  v = 131.7225*10^{17} feet^{3}  [ANS]

Burka [1]3 years ago
5 0
One km^3 is 1,000,000,000 m^3=10^9 m^3 hence 3.73 10^8 km^3 is 3.73 10^17 m^3

One meter is 3.28084 feet hence 1 m^3 is (3.28084)^3 feet

Thus 3.73 10^8 km^3 is 3.73*35.315 10^17 = 132 cubic feet
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