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_______ the pull of the earth, a rocket must reach a speed of 28440 km/h.

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different weight systems in different places  freedom from traditional ideas  traveling from the earth to the moon  the effect of gravitation on weight  
the; /    /; the    /; /    the; the  
clear  freezing  thin  poisonous  
clear  freezing  thin  poisonous  
it is too small to have a gravitational pull of its own  its pull is so small that we tend to ignore it  its pull disappears in the presence of the earth’s gravitation  it tends to melt and loses its gravitational pull  
it demands too great an effort for us to do so  we are too familiar with the way things are to question the ideas  we have proved that those ideas are correct  we are so sure of ourselves that we never doubt anything on the earth  
it is fixed if it is outside the earth’s gravitational pull  it decreases four times when it is 4,000 miles from the earth’s center  it varies with the change of the gravitational attraction between two objects  things increase in amount as they are closer to the earth’s surface  
1 pound.  2 pounds.  3 pounds.  4 pounds.  
as a strong pull as    a pull as strong as    as strong a pull as    as strong pull as  
clear  freezing  thin  poisonous  
as a strong pull as    a strong pull as    as strong a pull as    strong as a pull as  
it is too small to have a gravitational pull of its own.  its pull is so small that we tend to ignore it.  its pull disappears in the presence of the earth's gravitation.  it tends to melt and loses its gravitational pull.  
so a strong pull as    as strong a pull as    as a strong pull as    strong a pull than  
it is fixed if it is outside the earth's gravitational pull.  it decreases four times when it is 4,000 miles from the earth's center.  it varies with the change of the gravitational attraction between two objects.  things increase in amount as they are closer to the earth's surface.  

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