A Planet Is Made of Two Distinct Materials in Two $\times$

question 67

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 \(\times\) 10²³ kg
• B)1.37 \(\times\) 10²⁴ kg
• C)1.64 \(\times\) 10²⁴ kg
• D)1.57 \(\times\) 10²⁴ kg
• E)1.87 \(\times\) 10²⁴ kg

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Definitions:

Cross-Price Elasticity of Demand

The sensitivity measure of one good's demanded quantity to the price changes of a separate good.

Rice and Beans

A staple food dish in many cultures around the world, consisting of rice and beans as the main ingredients.

Complements

Goods or services that are typically consumed together, where the increase in the price of one leads to a decrease in demand for the other.

Linear Demand Curve

A graphical representation of demand where a straight line shows a constant relationship between quantity demanded and price.