A Sphere Has a Radius of 21 Cm and a Mass

question 18

Multiple Choice

A sphere has a radius of 21 cm and a mass of 1.9 kg.Its mass density is about:

• A)4.9 * 10^-5 kg/m³
• B)2.1 * 10^-4 kg/m³
• C)2.0 * 10^-2 kg/m³
• D)16 kg/m³
• E)49 kg/m³

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