EBK THINKING LIKE AN ENGINEER
4th Edition
ISBN: 8220103633512
Author: OHLAND
Publisher: PEARSON
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Chapter 11, Problem 3RQ
- 3. An engineer is conducting tests of two prototype toothbrush sanitizers that use ultraviolet radiation to kill pathogenic organisms while the toothbrush is stored. The engineer is trying to determine the minimum power needed to reliably kill pathogens on toothbrushes. Several toothbrushes are treated with a mix of bacteria, fungi, and viruses typically found in the human mouth, and then each is placed in one of the sanitizers for six hours at a specific power level (P). After six hours in the sanitizers, the viable pathogens remaining (R) on each toothbrush are assayed. Create a proper plot of the following experimental data set.
| Power (P) [W] | 15 | 28 | 35 | 50 | |
| Pathogens remaining (R) [%] | Sanitizer A | 51 | 40 | 29 | 7 |
| Sanitizer B | 59 | 42 | 22 | 8 | |
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Chapter 11 Solutions
EBK THINKING LIKE AN ENGINEER
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