Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt · leaf 214
te a sphere with the particle on its surface, and willtherefore attract as if all this portion were concentratedin the centre. To find what this attraction will be, let usfirst suppose the whole sphere of equal density. Let usput a, the radius of the entire sphere. r, the distance P C of the… … 196 ASTRONOMY. that is, inside the sphere the attraction will be directly asthe distance of the particle from the centre. If the par-ticle is at the surface we have r = a, and the attraction is 4 4Outside the surface the whole volume of the sphere -5 n a? o will attract the particle, and the…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
