Question

marbles of diameter 1.4 CM are dropped into a beaker containing some water and are fully submerged. the diameter of the beaker is 7 cm. find how many marbles have been dropped in it if the water rises by 5.6 CM​

Answer 1

Step-by-step explanation:

let n marbles are filled , then

volume of water take out = vol. of marbles filled

πr²h = 4πr³/3

πx3.5x3.5x5.6 = n(πx4x0.7x0.7x0.7/3)

5x5x1.4x3= n(0.7)

n = 150