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Several planets (Jupiter, Saturn, Uranus) are encircled by rings, perhaps composed of material that failed to form a satellite. In addition, many galaxies contain ring-like structures. Consider a homogeneous thin ring of mass 3.3 x 1022 kg and outer radius 4.5 x 108 m (the figure). (a) What gravitational attraction does it exert on a particle of mass 85 kg located on the ring's central axis a distance 4.4 x 108 m from the ring center? (b) Suppose that, starting at that point, the particle falls from rest as a result of the attraction of the ring of matter. What is the speed with which it passes through the center of the ring? (a) Number i 9.34E-4 (b) Number i R M m Units N Units

Several planets (Jupiter, Saturn, Uranus) are encircled by rings, perhaps composed of material that failed to form a satellite. In addition, many galaxies contain ring-like structures. Consider a homogeneous thin ring of mass 3.3 x 1022 kg and outer radius 4.5 x 108 m (the figure). (a) What gravitational attraction does it exert on a particle of mass 85 kg located on the ring's central axis a distance 4.4 x 108 m from the ring center? (b) Suppose that, starting at that point, the particle falls from rest as a result of the attraction of the ring of matter. What is the speed with which it passes through the center of the ring? (a) Number i 9.34E-4 (b) Number i R M m Units N Units

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←HW 13 (Ch13) Question 10 of 16 - < Your answer is partially correct. > (a) Number i 9.34E-4 (b) Number i Several planets (Jupiter, Saturn, Uranus) are encircled by rings, perhaps composed of material that failed to form a satellite. In addition, many galaxies contain ring-like structures. Consider a homogeneous thin ring of mass 3.3 x 1022 kg and outer radius 4.5 x 108 m (the figure). (a) What gravitational attraction does it exert on a particle of mass 85 kg located on the ring's central axis a distance 4.4 x 108 m from the ring center? (b) Suppose that, starting at that point, the particle falls from rest as a result of the attraction of the ring of matter. What is the speed with which it passes through the center of the ring? R M m Units N Units 0.05 / 1 :
Transcribed Image Text:←HW 13 (Ch13) Question 10 of 16 - < Your answer is partially correct. > (a) Number i 9.34E-4 (b) Number i Several planets (Jupiter, Saturn, Uranus) are encircled by rings, perhaps composed of material that failed to form a satellite. In addition, many galaxies contain ring-like structures. Consider a homogeneous thin ring of mass 3.3 x 1022 kg and outer radius 4.5 x 108 m (the figure). (a) What gravitational attraction does it exert on a particle of mass 85 kg located on the ring's central axis a distance 4.4 x 108 m from the ring center? (b) Suppose that, starting at that point, the particle falls from rest as a result of the attraction of the ring of matter. What is the speed with which it passes through the center of the ring? R M m Units N Units 0.05 / 1 :
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