Once the hydrogen in the core of a star is gone, nuclear processes producing outward pressure can no longer counteract the force of gravity and the outer layers then collapse inward toward the core. This increase in core density temporarily favors the fusion of Hydrogen in the outer shell, which pushes the outer layers of the star outward to create a star.

v 154.9= 0.9 length length s little over 154.9cm

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.