A Cylindrical Bar That Us Well Insulated Around Its Sides

question 37

Multiple Choice

A cylindrical bar that us well insulated around its sides connects hot and cold reservoirs and conducts heat at a rate of 10.0 J/s under steady state conditions.If all of its linear dimensions (diameter and length) are reduced by half,the rate at which it will now conduct heat between the same reservoirs is closest to

• A) 80.0 J/s.
• B) 20.0 J/s.
• C) 5.00 J/s.
• D) 2.50 J/s.
• E) 1.25 J/s.

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Definitions:

Prenatal Period

The time frame in human development that occurs from conception until birth.

Conception

The process of a sperm fertilizing an ovum, leading to the beginning of pregnancy.

Fetal

Pertaining to a fetus, the developing stage of a mammal after the embryonic stage and before birth.

Placenta

An organ that develops in the uterus during pregnancy, allowing nutrient uptake, waste elimination, and gas exchange through the mother’s blood supply, critical for fetal development.