The Mass of Pluto Is 1

question 4

Multiple Choice

The mass of Pluto is 1.31 × 10²² kg and its radius is 1.15 × 10⁶ m.What is the acceleration of a freely-falling object at the surface of Pluto if it has no atmosphere? (G = 6.67 × 10^-11 N ∙ m²/kg²)

• A)0.661 m/s²
• B)9.81 m/s²
• C)1.62 m/s²
• D)3.72 m/s²
• E)0.140 m/s²

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Definitions:

Risk Level

The degree of uncertainty and potential financial loss involved in an investment decision.

Real Rate of Return

The annual percentage return realized on an investment, adjusted for changes in the price level due to inflation or other external effects.

Nominal Rate

The stated interest rate of a financial instrument, not adjusted for inflation or other factors that affect its true cost or yield.

Inflation Rate

The rate at which the general level of prices for goods and services is rising, thus eroding purchasing power.