A Planet Is Made of Two Distinct Materials in Two

question 62

Multiple Choice

A planet is made of two distinct materials in two layers. From the core to R/2, the density of the material is 4000 kg/m³, and from R/2 to R the density is 3000 kg/m³. What is the mass of the planet if R = 5000 km?

• A) 2.62 * 10²³ kg
• B) 1.37 * 10²⁴ kg
• C) 1.64 * 10²⁴ kg
• D) 1.57 * 10²⁴ kg
• E) 1.87 * 10²⁴ kg

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Definitions:

Intrinsic Motivation

the drive to engage in an activity for its own sake, deriving pleasure and satisfaction from the activity itself rather than from any external rewards.

Extrinsic Motivation

Inspiration fueled by outside incentives like financial gain, celebrity status, academic marks, and commendations.

Extrinsic Motivation

A form of motivation that is driven by external rewards such as money, fame, grades, or praise.

Intrinsic Motivation

The drive to engage in activities for their own sake, deriving pleasure and satisfaction from the activity itself rather than from any external rewards.