Which statements correctly describe the effect of distance in determining the gravitational force and the electrical
force? Check all that apply.
The gravitational force has an infinite reach.
The electrical force has an infinite reach.
The gravitational force is inversely proportional to the distance.
The electrical force is inversely proportional to the distance.
The gravitational force is inversely proportional to the square of the distance.
The electrical force is inversely proportional to the square of the distance.
Answers: 3
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The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
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Which statements correctly describe the effect of distance in determining the gravitational force an...
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