Topic 3.2 - Using the Law of Universal Gravitation.pptx -...

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Using the Law ofUniversal GravitationTopic 3.2
The period of a planet around the SunUniversal gravitationa constant G=6.673x10-11N.m2/kg2Mass of the Sun: MS=1.989x1030kg
Example 1:Calculate the period (in days) for each of thefollowing planets:a) Earthb) Marsc) Jupiter
Example 2:a) Calculate the gravitation force acted on by the Sun onearthb) Calculate the gravitation force acted on by the moon on theearthc) Calculate the net gravitational force on theearth.Useful Constants:..G=6.673x10-11N.m2/kg2Mearth: 5.97x1024kgMSun: 1.98x1030kgMmoon: 7.35x1022kgRsun-earth:149.6 x109mRearth-moon:384.4x106m
Example 3:a) Calculate the gravitation force acted on by the Sun on themoonb) Calculate the gravitation force acted on by the Sun on themoonc) Calculate the net gravitational force on themoon.Useful Constants:..G=6.673x10-11N.m2/kg2Mearth: 5.97x1024kgMSun: 1.98x1030kgMmoon: 7.35x1022kgRsun-earth:149.6 x109mRearth-moon:384.4x106m

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