A Certain Engine Extracts 1300 J of Heat from a Hot

question 18

Multiple Choice

A certain engine extracts 1300 J of heat from a hot temperature reservoir and discharges 700 J of heat to a cold temperature reservoir.What is the efficiency of this engine?

• A) 46%
• B) 54%
• C) 86%
• D) 27%
• E) 13%

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Definitions:

"Good Neighbor" Policy

A foreign policy approach adopted by the United States, first mentioned by President Herbert Hoover but more closely associated with President Franklin D. Roosevelt, aimed at strengthening diplomatic and economic relations with Latin American countries in the 1930s, emphasizing cooperation and non-intervention.

"Gentleman's Agreement"

An informal and unwritten agreement upheld by the honor of the parties involved, rather than by legal obligation.

Neutrality Acts

A series of laws passed by the United States in the 1930s aimed at preventing American involvement in future foreign conflicts by limiting trade and travel with nations at war.

Fascist Aggression

The expansionist policies and acts of aggression carried out by fascist regimes, notably those of Germany and Italy in the lead-up to and during World War II.