A Rather Flimsy Spherical Balloon Is Designed to Pop at the Instant

question 75

Multiple Choice

A rather flimsy spherical balloon is designed to pop at the instant its radius has reached 5 cm. Assuming the balloon is filled with helium at a rate of $10 \frac { \mathrm { cm } ^ { 3 } } { \mathrm {~s} }$ , calculate how fast the diameter is growing at the instant it pops. Round your answer to the three decimal places.
The volume of a sphere of radius r is $V = \frac { 4 } { 3 } \pi r ^ { 3 }$ .

• A) \(0.255 \frac { \mathrm { cm } } { \mathrm { s } }\)
• B) \(0.064 \frac { \mathrm { cm } } { \mathrm { s } }\)
• C) \(0.318 \frac { \mathrm { cm } } { \mathrm { s } }\)
• D) \(0.032 \frac { \mathrm { cm } } { \mathrm { s } }\)
• E) \(0.424 \frac { \mathrm { cm } } { \mathrm { s } }\)

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Definitions:

Secondary Analysis

The use of existing research data to find new insights or to form new statistical analyses, without needing to perform data collection firsthand.

Mixed Methods Approach

A research approach that combines qualitative and quantitative methods in order to provide a broader perspective on the research question.

Triangulation

A method used in qualitative research to cross-check information and conclusions by using two or more methods, data sources, or researchers to study the same phenomenon.

Secondary Analysis

The process of using existing data collected for a different purpose to conduct a new study.