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Minggu, 06 Juni 2010

Rocket On The Moon

12.40 |

Given time and money for research, a rocket capable of reaching the moon
will certainly be made.To be successful,this rocket will need a speed
of about 7 miles per second ,or 25,000 miles per hour ,
to carry it past the point where the earth's reached,no fuel will be needed.
The rocket will be no friction with atmosphere to slow it down.
Because of the difference is mass and hence in gravitational pull,
the point of equal gravitational pull between earth and moon is
about 220,000 because of the earth and 30,000 miles from the moon.
Because of the weaker pull of the moon,
a rocket on its return trip will need a spees of only 1.5 miles per second to escape.

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