A Solid Object Is Made of Two Materials,one Material Having

question 18

Multiple Choice

A solid object is made of two materials,one material having density of 2000 kg/m³ and the other having density of 6000 kg/m³.If the object contains equal masses of the materials,what is its average density?

• A) 3000 kg/m³
• B) 3200 kg/m³
• C) 5000 kg/m³
• D) more information is needed

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Definitions:

Stackelberg Leader

A firm in a duopoly that moves first to set its output level, thereby determining the market's price and influencing the subsequent behavior of a follower firm.

Cournot Oligopolist

A firm competing in a market where a few firms control the majority of the market share and where each firm takes into account its rivals' production quantities when determining its own quantity.

Cournot Equilibrium

A concept in economic theory where firms reach a state in which each firm chooses the optimal output level assuming the output levels of the other firms.

Duopoly

A market structure characterized by two producers/sellers in competition with each other.