Question

Saturn's rings extend from about 92,000 km to about 136,000 km from the centre of saturn, but are only about .1 km thick. suppose the rings were caused by the disintegration of a moon made of ice that came within the roche limit. what was the diameter of the moon that disintegrated?

(A) 200 km

(B) 500 km

(C) 900 km

(D) 1200 km

(E) 1800 km

Answer 1

Assuming some density. Therefore total volume of saturn Ring will be equal to volume of moon t. (P² - 1, ²) t = 4 R² & To = 136000 km, Vi = 92000 km t = 0.1km > R= 3 (136000 km) ?> (92000 km) 2) (0.1 km) R3 = 752,400,000 km >R = 909.53 km diameter = 2R = 18 19.06 km ñ | 1800km)