Mithra Is an Unknown Planet That Has Two Airless Moons

question 39

Multiple Choice

$\begin{array} { | c | c | c | c | c | } \hline & \text { Mass } & \text { Radius } & \text { Orbital radius } & \text { Orbital period } \\\hline \text { Moon A } & 4.0 \times 10 ^ { 20 } \mathrm {~kg} & \text { unknown } & 2.0 \times 10 ^ { 8 } \mathrm {~m} & 4.0 \times 10 ^ { 6 } \mathrm {~s} \\\hline \text { Moon B } & 1.5 \times 10 ^ { 20 } \mathrm {~kg} & 2.0 \times 10 ^ { 5 } \mathrm {~m} & 3.0 \times 10 ^ { 8 } \mathrm {~m} & \text { unknown } \\\hline\end{array}$ 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:

Upper Control Limit

In quality control, it represents the highest value on a control chart that a process variable can reach before it is considered to signal potential loss of control, necessitating investigation.

Acceptance Sampling

A statistical quality control method where a random sample of items from a lot is inspected to decide if the entire lot should be accepted or rejected.

Defects

Imperfections or faults in a product or process that deviate from the desired specifications, affecting quality.

Sigma Control Limits

Statistical boundaries set in process control that represent acceptable variations in product quality or process performance, typically associated with Six Sigma methodology.