(111) Marbles of diameter 1.4 cm are dropped into a beaker contains
are fully submerged. The diameter of the beaker is 7 cm. Find how many man
have been dropped in it if the water rises by 5.6 cm.
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Answer:
diameter of marble = 1.4 cm
radius = 1.4/2 = 0.7 cm
volume of 1 marble =
let number of marbles required = n
base diameter of beaker = 7cm
radius = 7/2 = 3.5 cm
height rise in water = 56 cm
volume change = volume of n marbles
So 1500 marbles should be dropped
Explanation:
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