A Bug (2 Grams)crawls from the Center to the Edge

question 52

Multiple Choice

A bug (2 grams) crawls from the center to the edge of a disk that is freely turning at 20 rpm.The disk has a mass of 11 grams and a radius of 26 cm.What is the disk's new angular speed?

• A)8.7 rpm
• B)10.3 rpm
• C)12.6 rpm
• D)14.7 rpm
• E)22.3 rpm

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Definitions:

Capsid

The protein shell that encases the genetic material of a virus.

Envelope

In biology, it commonly refers to the outer coating of a virus that protects its genetic material; in other contexts, it can mean a paper cover for letters.

Stanley Prusiner

A Nobel Prize-winning scientist known for his discovery of prions, a type of protein that can cause infectious diseases in the brain.

Biological Principle

Fundamental concepts that underpin the study of biology, such as the cell theory, gene theory, evolution, homeostasis, and ecology.