Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 65
of the earth ? 3. If the mass of the earth is 80 times, and its diameter is fourtimes that of the moon, how does the weight of any mass at thesurface of the earth compare with the weight of the same mass atthe surface of the moon ? 4. At what distance from the earths surface is the weight of… … Fig. 36. Suspend three pith balls fromconvenient supports, as shown inFig. 36, using fine silk thread.Arrange the apparatus so that youmay vary the distance betweenthe balls. Call the balls A, Band C. 1. Touch the balls with your hand.Do you observe any tendency on thepart of the balls to come…
Physics
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