A Sphere Has a Radius of 21 Cm and a Mass

question 28

Multiple Choice

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

• A) 2.0 * 10^-6 kg/m³
• B) 2.0 * 10^-2 kg/m³
• C) 1.4 kg/m³
• D) 14 kg/m³
• E) 49 kg/m³

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Definitions:

Medium Of Exchange

Anything that facilitates trade by being generally accepted by all parties in payment for goods or services.

Facilitates Trade

Actions or policies designed to make trade between countries or parties easier, typically through reducing barriers such as tariffs and quotas.

Barter

The direct exchange of one product for another without using money.

Medium Of Exchange

Anything that is widely accepted as a means for the payment of goods and services and repayment of debts.