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Answer:
Step-by-step explanation:
metallic ball is sphere
volumeof sphere = (4/3)π r³
= (4/3)π 2.1³ (diameter=4.2cm, radius =diameter/2 =4.2/2=2.1 cm)
=38.808cm³
mass of ball = density*volume
=8.9*38.808
= 345.39gm
Anonymous:
345.3912is correct answer ✌
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