Mithra Is an Unknown Planet That Has Two Airless Moons

question 32

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 airless moons, A and B, in circular orbits around it. The table summarizes the hypothetical data about these moons. If you dropped a laser at the surface of Moon B, at what rate would it accelerate toward the ground? (G = 6.67 × 10^-11 N ? m²/kg²)

• A)0.10 m/s²
• B)0.15 m/s²
• C)0.20 m/s²
• D)0.25 m/s²
• E)0.30 m/s²

---

Definitions:

Informed Party

An individual or entity possessing knowledge or information that gives them an advantage in transactions or decisions.

True Risks

The actual risks associated with an investment, activity, or decision, taking into account all factors and potential outcomes.

Generous Tip

A sum of money given to service workers that is significantly higher than the standard tipping percentage, often as a reward for exceptional service.

Signaling Mechanism

A method through which parties communicate information indirectly or directly to influence perceptions and decisions of others, often used in markets and negotiations.