1. Determine the force of gravitational attraction between the earth (m = 5.98 x 1024 kg) and a 70-kg physics student if the student is standing at sea level, a distance of 6.38 x 106 m from earth's center.
2. Suppose that two objects attract each other with a gravitational force of 16 units. If the distance between the two objects is doubled, what is the new force of attraction between the two objects?
3. Suppose that two objects attract each other with a gravitational force of 16 units. If the mass of both objects was doubled, and if the distance between the objects was doubled, then what would be the new force of attraction between the two objects?
4. Derive the unit of gravitational constant.
5. Write the universal law of gravitation and derive the mathematical expression.
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Determine the force of gravitational attraction between the earth (m = 5.98 x 10 kg) and a 70-kg physics student if the student is standing at sea level, a distance of 6.38 x 10 m from earth's center.
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