A 30-N Stone Is Dropped from a Height of 10

question 122

Multiple Choice

A 30-N stone is dropped from a height of 10 m and strikes the ground with a speed of 13 m/s.What average force of air friction was exerted on the stone as it fell?

• A)4.1 N
• B)2.9 N
• C)0.13 kN
• D)7.2 N
• E)1.2 N

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Definitions:

Triphosphates

Organic compounds that contain three phosphate groups and are involved in energy transfer within cells, ATP being the most notable example.

Transcription

The process by which the genetic information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).

Translation

The process by which the sequence of bases in messenger RNA is converted into the sequence of amino acids in a protein by ribosomes and transfer RNA.

Prokaryotes

Microorganisms that lack a distinct nucleus and other organelles due to the absence of a membrane surrounding their genetic material.