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Wwwwwwvu wyry TVOVIONG,Some plastic balls of radius 1 cm were melted and cast into a tube. The thickness.length and outer radius of the tube were 2 cm, 90 cm and 30 cm respectively.How many balls were melted to make the tube? |
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Answer» Answer: Answer: No of balls are 7830. Step-by-step EXPLANATION: Given: Radius of plastic ball, r = 1 CM Thickness of tube = 2 cm Length of Tube, h = 90 cm Outer radius of Tube, = 30 cm To find: No. of Balls Volume of a ball = volume of sphere = = = Inner radius of tube, = 30 - 2 = 28 cm Volume of tube = Volume of Outer cylinder - Volume of Inner Cylinder = = = =
Therefore, No of balls are 7830. Read more on Brainly.in - brainly.in/question/3555069#readmore Step-by-step explanation: |
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