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Janssen, Paul1
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Pharmacokinetics and "RC" Circuit Concepts
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De Cock, Mieke; Janssen, Paul – Physics Teacher, 2013
Most introductory physics courses include a chapter on "RC" circuits in which the differential equations for the charging and discharging of a capacitor are derived. A number of papers in this journal describe lab experiments dealing with the measurement of different parameters in such "RC" circuits. In this contribution, we…
Descriptors: Science Instruction, Physics, Introductory Courses, Pharmacology
Earplugs and the NRR
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McCall, Richard P. – Physics Teacher, 2006
Earplugs are sold in most pharmacies. Because I teach at a college of pharmacy, I want my students to understand a particular feature of earplugs called the Noise Reduction Rating, or NRR. The NRR is a rating of the effectiveness of earplugs at decreasing the amount of sound (or noise) entering the ear. Typical values range from 12 dB to 33 dB;…
Descriptors: Pharmacy, Acoustics, Auditory Discrimination, Assistive Technology