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

question 61

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

---

Definitions:

Unrealistic Beliefs

Convictions that are not grounded in reality or evidence, often leading to misguided actions or judgments.

Cognitive Therapy

A type of psychotherapy focused on modifying dysfunctional emotions, behaviors, and thoughts through systematic procedures.

Contingency Contract

A contract format commonly used in behavioral economics and psychology, specifying the delivery of rewards or consequences contingent on the performance of the desired behavior.

Behavioral Change

Refers to the process of transforming or modifying human behaviors, often aimed at adopting more desirable or healthful habits, through various psychological and intervention strategies.