A Girl Jogs Around a Horizontal Circle with a Constant

question 33

Multiple Choice

A girl jogs around a horizontal circle with a constant speed.She travels one fourth of a revolution, a distance of 25 m along the circumference of the circle, in 5.0 s.The magnitude of her acceleration is:

• A)0.31 m/s²
• B)1.3 m/s²
• C)1.6 m/s²
• D)3.9 m/s²
• E)6.3 m/s²

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Definitions:

Aspermia

A medical condition characterized by the absence of sperm in semen.

Spermatid

An immature male gamete or reproductive cell that develops into a mature spermatozoon.

Spermicide

A chemical product used during sexual intercourse to kill sperm, thereby reducing the likelihood of pregnancy.

Ejaculatory Duct

A duct through which semen is ejected into the urethra before being expelled from the body during ejaculation.