Why does the gravitational attraction between the Sun and Mercury vary? Would it vary if the orbit of Mercury were perfectly circular?
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Why does the gravitational attraction between the Sun and Mercury vary? Would it vary if the orbit of Mercury were perfectly circular?
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- A planet of mass 6×10 to the 24th power kg is in orbit around a star of mass 2×10 to the 30th kg. If the distance between the planet and the star is 5×10 to the 11th power m, what is the force exerted on this planet by the star?If you're going to travel from Earth to Mars, then at the moment you launch from Earth, Mars should be at its closest approach to Earth in its orbit around the Sun behind the Earth in its orbit around the Sun ahead of Earth in its orbit around the Sun on the opposite side of the Sun from where Earth isCalculate the force of gravity between a newborn baby (mass = 3 kg) and the planet Mars (mass = 6.4 × 1023 kg) when Mars is at its closest to Earth (distance = 5.6 × 1010 m).
- According to Newton, two objects attracted by gravity actually both orbit around their common center of mass. That means: a the Sun is not orbiting because it's too big and too massive compared with Earth b the Sun is not orbiting because it's too far from Earth c the Sun is not orbiting because stars do not orbit d the Sun is orbiting but we can't clearly see it because it's too big and too massive compared with EarthCalculate the magnitude of the gravitational force between two 10-kg lead spheres separated by a center-to-center distance of 25 cm.How do you determine the mass of a planet with just its distance to another object, and the gravitational field intensity?
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