A 25-G Ball Is Released from Rest 80 M Above

question 18

Multiple Choice

A 25-g ball is released from rest 80 m above the surface of the Earth.During the fall the total thermal energy of the ball and air increases by15 J.Just before it hits the surface its speed is

• A)19 m/s
• B)35 m/s
• C)40 m/s
• D)45 m/s
• E)53 m/s

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Definitions:

Nucleosome

A basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound around a core of histone proteins.

Transcriptionally Inactive

Refers to a state where certain genes or portions of the genome are not being transcribed into RNA, possibly due to regulatory mechanisms or chromatin structure.

Inducible Operon

A segment of DNA that includes genes which are transcribed together in response to an environmental signal.

Lactose Operon

A set of genes and their regulatory sequences involved in the metabolism of lactose in bacteria, demonstrating control of gene expression.