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Which of the following statements is not correct according to Rutherford model? (a) Most of the space inside an atom is empty. (b) The electrons revolve around the nucleus under the influence of coulomb force acting on them. (c) Most part of the mass of the atom and its positive charge are concentrated at its centre. (d) The stability of atom ...If you look at a system in which almost all the mass is concentrated at the center -- like our Solar System -- then the speed with which objects orbit the system decreases quickly with distance. Specifically, the orbital speed goes as the inverse square root of the orbital radius; we call this common situation "Keplerian rotation."Department of Physics and Astronomy Gold Member. 477. 1. If you're making the point-mass approximation, the moment of inertia will be given by Mr^2 with r = Ro + R1. If you consider the moment of inertia of the sphere, the sphere has a moment of inertia of 2 (Mr^2)/5 about its center (you either look that up or compute it using the definition of moment of inertia; here, r = R1).

A) It will collide with stars in the Andromeda galaxy. B) It will collide with stars in both the Andromeda and Milky Way galaxies. C) It will be swallowed by the supermassive black hole at the galactic center. D) It will collide with stars in our own Milky Way galaxy. E) It will immediately go supernova. The halo's greatest concentration is at its center, where the cumulative light of its stars becomes comparable to that of the disk stars. This region is called the (nuclear) bulge of the Galaxy; its spatial distribution is somewhat more flattened than the whole halo.The vast majority of the galaxy’s mass is concentrated in a tiny region in its center, with mostly empty space outside of that region. B. The highest concentration of mass is in the center of the galaxy, and it decreases with increasing distance from the center. CORRECT C.(c) Earth may be assumed to be an isolated sphere of radius 6.4 × 10 3 km with its mass of 6.0 × 10 24 kg concentrated at its centre. An object is projected vertically from the surface of the Earth so that it reaches an altitude of 1.3 × 10 4 km.

The third method astronomers use to detect and measure dark matter in galaxy clusters is to image them in the light of X-rays. When the first sensitive X-ray telescopes were launched into orbit around Earth in the 1970s and trained on massive galaxy clusters, it was quickly discovered that the clusters emit copious X-ray radiation (see Figure 28.25).Use Newton's Law of Gravitation to compute the work (in J) required to launch a 1000-kg satellite vertically to an orbit 1000 km high. You may assume that Earth's mass is 5.98×1024kg and is concentrated at its center. Take the radius of the Earth to be 6.37×106m and G=6.67×10−11N⋅m^2/kg^2. Relevant Equations ….

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It is likely that the assumption that all galaxies have mass concentrated in their nuclei stemmed from this wrong conclusion about the Milky Way. Fig. 3. M31. Photo courtesy of Jim Bonser. ... the gravity of the mass distribution will be the same as if all its mass, m, were concentrated at its center. Hence, the gravitational acceleration, a g, ...Describe the methods through which astronomers can estimate the mass of a galaxy. Characterize each type of galaxy by its mass-to-light ratio. The technique for deriving the masses of galaxies is basically the same as that used to estimate the mass of the Sun, the stars, and our own Galaxy.

The virial theorem postulates a simple relationship between the average kinetic energy and average gravitational potential energy of bodies in a gravitationally bound system: KEavg = −1 2GPEavg (18.1) (18.1) K E a v g = − 1 2 G P E a v g. The right-hand side depends on some way on the mass of the entire system -- which is very difficult to ...Summary. The Sun revolves completely around the galactic center in about 225 million years (a galactic year). The mass of the Galaxy can be determined by measuring the orbital velocities of stars and interstellar matter. The total mass of the Galaxy is about 2 × 10 12 M Sun.For our calculation, then, we can assume that all the mass that lies inward of the Sun’s position is concentrated at the center of the Galaxy, and that the Sun orbits that point from a distance of about 26,000 light-years. This is the sort of situation to which Kepler ’s third law (as modified by Newton) can be directly applied. Plugging ...

serge ibaka gray sweatpants Its closest approach takes it to a distance of only 124 AU or about 17 light-hours from the black hole. This orbit, when combined with observations of other stars close to the galactic center, indicates that a mass of 4.6 million M Sun must be concentrated inside the orbit—that is, within 17 light-hours of the center of the Galaxy.... mass distribution of the galaxy cannot be concentrated, like the light distribution. ... While Oort was carrying out his observations of stellar motions, Fritz ... zillow orange citydr. jeffrey lang The research team estimates that DF2 is 72 million light-years from Earth. They say the distance measurement solidifies their claim that DF2 lacks dark matter, the invisible glue that makes up the bulk of the universe's contents. The galaxy contains at most 1/400th the amount of dark matter that the astronomers had expected.Study with Quizlet and memorize flashcards containing terms like 1. The Milky Way is a A. globular duster. B. nearby galaxy. C. galaxy with the sun at its center. D. galaxy with the sun some distance from its center., 2. Emissions of various kinds from near the center of the Milky Way galaxy suggests the presence of a A. quasar. B. globular cluster. C. black … kansas final four appearances The Sun, like all the other stars in the Galaxy, orbits the center of the Milky Way. Our star's orbit is nearly circular and lies in the Galaxy's disk. The speed of the Sun in its orbit is about 200 kilometers per second, which means it takes us approximately 225 million years to go once around the center of the Galaxy. requirements for law degreeellen hermanku med center pharmacy Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8.0×10 11 solar masses. A star orbiting on the galaxy’s periphery is about 6.0×10 4 light years from its center. (a) What should the orbital period of that star be? (b) If its period is 6.0×10 7 instead, what is the mass of the galaxy? Such calculations ... oppositional research For our calculation, then, we can assume that all the mass that lies inward of the Sun’s position is concentrated at the center of the Galaxy, and that the Sun orbits that point from a distance of about 26,000 light-years. This is the sort of situation to which Kepler’s third law (as modified by Newton) can be directly applied. Plugging ... brasssringenglish department kushark cordless handheld vacuum troubleshooting The M31 Galaxy The solar system is part of the Milky Way Galaxy, a disk-shaped collection of stars, one of billions of galaxies in the universe.Its radius is about 100,000 light years, and it has several small "satellite galaxies," among them the two Magellanic Clouds visible from the southern hemisphere, one of which drew attention when a supernova burst in it …1 Mar 2023 ... If we double the distance from the center of the galaxy, the mass enclosed within the radius also doubles. ... galaxy is much brighter at its ...