If the sun were half as massive (M=0.5) then the period of the Earth's orbit would be: 1) 0.5 years 2) 0.7 years 3) 1.4 years 4) 0.4 years
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If the sun were half as massive (M=0.5) then the period of the Earth's orbit would be:
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- If a woman A approaches a man B at a distance C, the gravitational force between them quadruples as C halves exceeds their weight is proportional to the sum A + B is proportional to the distance C squaredWhen a falling meteoroid is at a distance above the Earth's surface of 3.10 times the Earth's radius, what is its acceleration due to the Earth's gravitation? m/s? towards earth8.) The Martian moon Deimos has an almost perfectly circular orbit, completed once every 30.3 hours at a speed of 1.35 km/s. What is the radius of its orbit? The radius of Mars is 3.39 x 106 m. What is its escape velocity? To what radius would Mars have to collapse to become a black hole?
- Use Newton’s universal gravitation formula to determine the gravitational force of attraction between the earth and the moon given: mass (moon) m(moon)=7.35 x 10^22kg the mass of the earth is m(earth)=5.98 x 10^24kg the distance between centers of the earth and moon is r=3.92 x 10^8 m use Newton gravitation equation F=G(m(1) x m(2))/r^2If the sun were twice as massive (M = 2) and Earth were the same distance away (r =1) then the period of the Earth's orbit would be: 1) 0.5 years 2) 0.7 years 3) 1.4 years 4) 0.4 yearsAstronomical observations of our Milky Way galaxy indicate that it has a mass of about 8 x 1011 solar masses. A star orbiting near the galaxy's periphery is 5.6 x 104 light years from its center. (For your calculations, assume that the galaxy's mass is concentrated near its center.) (a) What should the orbital period of that star be? yr (b) If its period is 5.1 x 107 years instead, what is the mass of the galaxy? Such calculations are used to imply the existence of "dark matter" in the universe and have indicated, for example, the existence of very massive black holes at the centers of some galaxies. solar masses
- 11 Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0 x 10- solar masses. A star orbiting near the galaxy's periphery is 5.9 x 10" light-years from its center. (a) What should the orbital period (in y) of that star be? y. (b) If its period is 6.1 x 10' years instead, what is the mass (in solar masses) of the galaxy? Such calculations are used to imply the existence of other matter, such as a very massive black hole at the center of the Milky Way. solar massesa height of 1000 km. The radius of the earth is 6.38 × 10³ km. Mass of A satellite revolves around the earth at a of 1000 km. The radius of the earth is 6.38 × 10° km. Mass the earth is 6 × 10 2 - 2 24 6.67 × 10¬1" N-m² kq- kg and G Determine its orbital velocity and period of revolution.Asteroid: An asteroid of mass 326 kg orbits the sun in a long-period orbit of 125 years. It is currently at its furthest distance from the sun: 7.46 x 10+12 m. It is moving at 284 m/s. When the asteroid makes its closest approach to the sun – in another 62 years – it will pass within 1.68 x 10+10 m of the sun. How fast will it be going?