Mithra Is an Unknown Planet That Has Two Moons, a |

question 73

Multiple Choice

$$\begin{array} { | l | c | c | c | c | } \hline & \text { Mass } & \text { Radius } & \text { Orbital radius } & \text { Orbital period } \\\hline \text { Moon A } & 4.0 \times 10 ^ { 20 } \mathrm {~kg} & \text { unknown } & 2.0 \times 10 ^ { 8 } \mathrm {~m} & 4.0 \times 10 ^ { 6 } \mathrm {~s} \\\hline \text { Moon B } & 1.5 \times 10 ^ { 20 } \mathrm {~kg} & 2.0 \times 10 ^ { 5 } \mathrm {~m} & 3.0 \times 10 ^ { 8 } \mathrm {~m} & \text { unknown } \\\hline\end{array}$$ Mithra is an unknown planet that has two moons, A and B, in circular orbits around it. The table summarizes the hypothetical data about these moons. What is the mass of Mithra? (G = 6.67 × 10^-11 N ? m²/kg²)

• A)1 × 10²² kg
• B)3 × 10²² kg
• C)1 × 10²³ kg
• D)3 × 10²³ kg
• E)1 × 10²⁴ kg

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Definitions:

Anthropocentric Relationship

A viewpoint that human beings are the most significant entities in the universe, focusing on human values and interests in evaluating the environment.

Environmental Perceive

The process by which individuals notice and interpret environmental factors or conditions.

Conservation Era

A period in American history marked by the beginning of a widespread environmental movement focusing on the preservation and sustainable management of natural resources.

Grassroots Environmentalism

A movement advocating for environmental protection and sustainability that originates from community-level activism and action, rather than top-down directives.