In Table 19-1 are listed the average distance from the Sun- r- in Astr.pdf

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In Table 19.1 are listed the average distance from the Sun, r , in Astronomical Units (AUs), and the average orbital velocity, v , in kilometers per second ( km / sec ) , for each of the eight planets of the solar system. 1. Plot the planetary distance and velocity data from Table 19.1 on the axes of Figure 19.2 on the worksheet. 2. Describe the trend of the planets' orbital velocities with increasing distance from the Sun (a centrally concentrated mass) according to the data points in Figure 19.2. Be specific. TABLE 19.1 Planetary Distance and Orbital Velocity Data The Milky Way Galaxy: A Dispersed Distribution of Mass Our solar system lies in the outskirts of the Milky Way, a vast, rotating, disk-shaped assemblage of stars, gas, and dust more than 100,000 light-years across. Table 19.2 lists observational data for celestial objects found at various locations within the Milky Way's disk: r is the object's distance, or radius, from the galactic center, in units of kiloparsecs (kpc), where 1 kpc = 1 , 000 parsecs (about 3,260 light- years), and v is the object's orbital velocity around the galactic center in kilometers per second ( km / s ) . Taken together, this array of orbital velocities traces out the Galaxy's pattern of rotation. 3. Plot the galactic radius and velocity data from Table 19.2 on the axes of Figure 19.3 on the worksheet. 4. (a) Describe the trend of celestial objects' orbital velocity with increasing distance from the galactic center, according to the data points in Figure 19.3. (b) How does the form of this graph differ from the one you plotted in Figure 19.2 for the planets of the solar system? TABLE 19.2 Milky Way Data Data trom r, sorue et at. For credit, you must show all of your work. FIGURE 19.2 Graph of solar system data. 2. 3. FIGURE 19.3 Graph of Milky Way data..

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