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8 Space physics

8 Space physics

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Question 3

In an exoplanetary system, the gas giant planet Aegir-b has an estimated diameter of 18 500 km18\,500\text{ km}18500 km.

a.

The host star, Aegir, has a diameter that is 828282 times greater than the diameter of Aegir-b. Calculate the diameter of the star Aegir in meters. Give your answer in scientific notation to an appropriate number of significant figures.

[2]
b.

An inner dwarf planet in the same system has a diameter that is 0.240.240.24 times the diameter of Aegir-b. Calculate the diameter of this inner dwarf planet in meters. Give your answer in scientific notation to an appropriate number of significant figures.

[2]
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8 Space physics Questions

  1. GCSE
  2. /Physics
  3. /8 Space physics

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