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Assume You Want to Deduce the Radius of a Planet

question 21

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Assume you want to deduce the radius of a planet in our Solar System as it occults a background star when the relative velocity between the planet and the Earth is 30 km/s. If the star crosses through the middle of the planet and disappears for a total of 26 minutes, what is the planet's radius?


Definitions:

Purchase Accounting

An accounting method used to consolidate the financial statements of a acquiring company and the company it has acquired.

Net Asset Value

Net Asset Value is the total value of an entity’s assets minus its liabilities, often used in relation to the value of an investment fund.

Unlevered Cost

The cost of an investment or project without taking into account the effect of borrowed funds, often used to assess the project's risk without financing impact.

Equity

Equity refers to the ownership interest in a company, represented by the shares held by investors.

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