Moulton, Forest Ray, 1872-1952 · New York, The Macmillan company · leaf 485
tend to give it a rotation in either direction, or so as not tohave any effect on its rotation. If they are not distributedin some special way, the collective result of the collision ofmany of them will be very small. > Let V and v represent the velocity of the nucleus and… … CH. XII, 264] EVOLUTION OF THE SOLAR SYSTEM 439 Planetesimals of class (c) move faster than the nucleusat the time of collision. Therefore they overtake the nu-cleus and tend to give it a forward rnta.tinn. It follows from this discussion that two of the three classesof planetesimals tend to give…
Astronomy
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