An Object at Temperature 227°C Radiates Energy at a Net

question 20

Multiple Choice

An object at temperature 227°C radiates energy at a net rate of R J/s.By what factor would the net rate of energy loss increase if the same object were at a temperature of 427°C? Assume the surrounding temperature is 0°C.

• A) 4.1
• B) 3.8
• C) 12.5
• D) 8.3
• E) 6.7

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Definitions:

Gametes

Mature haploid reproductive cells (e.g., sperm and eggs) that unite during sexual reproduction to form a new diploid organism.

Uterus

Hollow, muscular organ in which the fertilized ovum develops into a fetus.

Acrosome

A cap-like structure present over the anterior part of a sperm's head, containing enzymes that help sperm penetrate an egg.

Midpiece

A part of the sperm cell that contains mitochondria, providing energy for movement.