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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Definitions:

Public Choice

A field of economics that studies how decisions are made by voters, politicians, and government officials, often applying theories and methods from economics to political science.

Public Good

A good or service that is provided without profit to all members of a society, either by the government or a private individual or organization.

Majority Vote

A voting system where the option receiving more than half of the votes is selected.

Political Corruption

The misuse of public power for private benefit, typically involving bribery, graft, or influence peddling.