You Are the Science Officer on a Visit to a Distant

question 84

Multiple Choice

You are the science officer on a visit to a distant solar system.Prior to landing on a planet you measure its diameter to be 1.8 × 10⁷ m.You have previously determined that the planet orbits 2.9 × 10¹¹ m from its star with a period of 402 earth days.Once on the surface you find that the free-fall acceleration is 19.5 m/s².What are the masses of (a) the planet and (b) the star? (G = 6.67 × 10^-11 N ∙ m²/kg²)

• A)(a)2.4 kg × \(10^{25}\) kg, (b)1.2 kg × \(10^{31}\) kg
• B)(a)4.3 kg × \(10^{25}\) kg, (b)1.2 kg × \(10^{31}\) kg
• C)(a)2.4 kg × \(10^{25}\) kg, (b)7.1 kg × \(10 ^ { 30 }\) kg
• D)(a)4.3 kg × \(10^{25}\) kg, (b)7.1 kg × \(10 ^ { 30 }\) kg

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Definitions:

Russian Naturalist

A scientist from Russia who specializes in natural history, including the study of plants, animals, and the environment.

Cooperation

The act of working together towards a common goal or interest, often leading to mutual benefit and achievements that might not be possible individually.

Darwin

Charles Darwin, a British naturalist known for his contributions to the science of evolution, particularly the theory of natural selection.

Technological Determinism

The theory that technology shapes societal structure, values, and cultural development in a deterministic manner.