2. Are there any known satellites of Jupiter that are beyond the Hill sphere of Jupiter? If not, what is the largest ratio r(satellite)/r(Hill), among its satellites? 1/3 Hill Sphere Radius: RHill Rна M2 ЗМ1
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- How many orders of magnitude do you need to grow in spatial scale (size) to form a planet? Let's take the extreme ends of this scale, from a dust particle of radius a = 10-6m to the gas giant Jupiter (you can round up its radius to the nearest ten to keep it simple). What else has this difference in order of magnitude? Maybe pick something that's not a length scale. Be creative!Which of the following is least reasonable regarding Trojan asteroids? Group of answer choices Trojan asteroids are located in either of two gravitationally stable regions within the orbit of Jupiter, about 120° apart. Trojan asteroids are those asteroids in the asteroid belt which are hidden from view by Mars. Trojan asteroids are kept in orbit primarily by the gravitational effects of Jupiter and the Sun. Trojan asteroids pose much less danger to us than Earth-crossing asteroids. Trojan asteroids constitute a small minority of all the known asteroids.Suppose the average mass of each of 20,000 asteroids in the solar system is 1017 kg. Compare the total mass of these asteroids to the mass of Earth. Assuming a spherical shape and a density of 3000 kg/m3, estimate the diameter of an asteroid having this average mass.
- 14. Saturn's rings a. were created by its incredibly large gravitational capture of asteroids and comets b. have looked basically the same since they formed along with Saturn c. are continually supplied by impacts into small moons d. were created long ago when tidal forces tore apart a large moonJupiter is slightly larger than Saturn but its density is about 2 times the density of Saturn. The reason for this density difference is a. Jupiter's higher mass and gravity compress its interior more b. Jupiter is more compressed by Sun's gravity c. Jupiter has larger volume d. Jupiter has larger proportions of rocks and metalThe reason that most moons in our solar system orbit in all sorts of crazy directions is because most moons a. co-formed with their planets b. are the result of major collisions c. have been pulled into these crazy orbits by tidal forces d. are captured asteroids Tidal flexing will occur in a moon whose orbit is a. close to its planet and circular b. far from its planet and circular c. far from its planet and eccentric d. close to its planet and eccentric