SUBJECT : GENERAL PHYSICS I. NEWTON’S LAW OF UNIVERSAL GRAVITATION 4. What will happen to the gravitational force between two objects if we reduce the mass of one object by a quarter of its original mass and triple the mass of the other one then the distance between them is maintained? A. Gravitational force will decrease by a factor of 9/4. B. Gravitational force will decrease by a factor of 3/4. C. Gravitational force will increase by a factor of 9/4. D. Gravitational force will increase by a factor of 3/4.

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SUBJECT : GENERAL PHYSICS I. NEWTON’S LAW OF UNIVERSAL GRAVITATION 4. What will happen to the gravitational force between two objects if we reduce the mass of one object by a quarter of its original mass and triple the mass of the other one then the distance between them is maintained? A. Gravitational force will decrease by a factor of 9/4. B. Gravitational force will decrease by a factor of 3/4. C. Gravitational force will increase by a factor of 9/4. D. Gravitational force will increase by a factor of 3/4. 5. A father, whose mass is 82.5 kg, is watching her daughter sleep. He exerts 6.45 x 10-8 N of gravitational force to her 25kg daughter. How far is her father from her? A. 146 meters B. 1.46 centimeters C. 14.6 meters D. 146 centimeters II. SATELLITE MOTION 6. A satellite is moving in a circular orbit at a height of 2700 km above the surface of the Earth? What is the period of this satellite in hours? Mass of Earth = 5.972 X 1024 kg. Radius of Earth = 6.38 x 103 km A. 22.3 hours B. 23.9 hours C. 2.23 hours D. 2.39 hours
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