Determine the number of revolutions completed by the fan after it is turned off.
Answer to Problem 41PPS
The fan will complete
Explanation of Solution
Given:
A fan is running at 10 revolutions per second. After it is turned off, its speed decreases at a rate of 75% per second. Determine the number of revolutions completed by the fan after it is turned off.
Concept Used:
The number of revolutions completed in each second after the fan is switched off forms a geometric series.
The initial speed is 10 revolutions per second, so
The speed decreases at a rate of 75% per second. Therefore, the number of revolution completed in any second is 25% of the revolutions completed in the previous second. So,
Now use the sum formula:
Calculation:
Thus, the fan will complete
Chapter 10 Solutions
Glencoe Algebra 2 Student Edition C2014
Additional Math Textbook Solutions
College Algebra (7th Edition)
College Algebra
College Algebra
Linear Algebra and Its Applications (5th Edition)
Finite Mathematics for Business, Economics, Life Sciences and Social Sciences
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education