Question

excellent culture of radius 6 centimetre contain all of radius 3.5 CM are in oil how many squares are necessary to restart level of the all by two centimetre​

Answer 1

Answer:

16 spherical balls are necessary to raise the water level by 2 cm.

Step-by-step explanation:

Given :  

Radius of the cylindrical jar (R) = 6 cm

Height of the oil in cylindrical jar (h) = 2 cm

Radius of the iron sphere, r = 1.5 cm

Let the number of iron spheres be (n)

Volume of the cylindrical jar is equal to the sum of volume of (n) number of iron spheres.

n = Volume of the cylindrical jar / Volume of the iron sphere

n = πR²h / 4/3πr³

n = R²h / 4/3r³

n = (6² × 2) / (4/3 × 1.5³)

n = (36 × 2 × 1000 × 3 ) / ( 4 × 15 × 15 × 15)

n = (9 × 2 × 1000 )/ (5 × 225) = (2 × 200)/ 25 = 2 × 8 = 16  

n = 16  

Hence, 16 spherical balls are necessary to raise the water level by 2 cm.