2points
identify the characteristic of gravity that is incorrect.
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a. it makes astronauts weightless.
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b. it keeps us from floating into outer space.
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c. it holds things together.
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d. the acceleration is constant near the surface of the earth.
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Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.