Extra Practice 12.1-12.2 SOLUTIONS.pdf - Physics 621A \u2013 Extra Practice Sections 12.1-12.2 1 Calculate the gravitational force the Sun exerts on

Extra Practice 12.1-12.2 SOLUTIONS.pdf - Physics 621A –...

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Physics 621A Extra Practice Sections 12.1-12.2 1. Calculate the gravitational force the Sun exerts on Jupiter. [Mass of Jupiter: 1.901 × 10 27 kg] 4.17 × 10 23 𝑁 2. Calculate the gravitational force between two spherical masses whose centers are 2.0 m apart if their masses are 8.0 kg and 6.0 kg. 8.0 × 10 −10 𝑁 3. Sally has a mass of 50.0 kg. Calculate the gravitational force between Sally and the Earth using Newton’s Law of Universal Gravitation. How does this value compare with her weight? 492 𝑁, ?𝑎𝑚𝑒 𝑎? ?𝑒𝑖𝑔ℎ? 4. Calculate the mass of the Sun using Newton’s version of Kepler’s Third Law and the data for Saturn on page 573. 1 AU = 1.49 × 10 11 𝑚 1.99 × 10 30 𝑘𝑔 5. Mimas orbits Saturn with an orbital radius of 1.87 x 10 8 m and has an orbital period of about 23 hours. Use Newton’s version of Kepler’s Third Law to calculate the mass of Saturn. 5.6 × 10
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