A Heat Engine with an Efficiency Of $30 \%$ Performs $2500 \mathrm {~J}$

question 2

Multiple Choice

A heat engine with an efficiency of $30 \%$ performs $2500 \mathrm {~J}$ of work. How much heat is discharged to the lower temperature reservoir?

• A) \(1400 \mathrm {~J}\)
• B) \(8300 \mathrm {~J}\)
• C) \(7100 \mathrm {~J}\)
• D) \(5800 \mathrm {~J}\)
• E) \(750 \mathrm {~J}\)

---

Definitions:

Maternal Employment

The participation of mothers in the workforce, which can have various impacts on family dynamics, child development, and socioeconomic status.

Pygmalion Effect

The phenomenon where higher expectations lead to an increase in performance; a form of self-fulfilling prophecy.

Late-maturing

Refers to individuals who experience the physical, emotional, and psychological changes of puberty after their peers.

Early-maturing

Refers to individuals who reach physical or sexual maturity earlier than the average for their age group, often facing different social and psychological challenges.