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How many decibels correspond to the lowest-intensity sound

Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt ISBN: 9780321909107 29

Solution for problem 6RCQ Chapter 21

Conceptual Physics | 12th Edition

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Conceptual Physics | 12th Edition | ISBN: 9780321909107 | Authors: Paul G. Hewitt

Conceptual Physics | 12th Edition

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Problem 6RCQ

Problem 6RCQ

How many decibels correspond to the lowest-intensity sound we can hear?

Step-by-Step Solution:
Step 1 of 3

Mart 1 Lecture 13: Cellular Respiration: Harvesting Chemical Energy ● Catabolic pathways are the set of metabolic pathways that break down molecules into smaller units that are either oxidized to release energy, or used in other anabolic reactions. ○ Fermentation ​ is the partial degradation of sugars in absence of oxygen. ■ Glycolysis generates two ATP whether oxygen is present (​ aerobic​) or not (anaerobic​. ■ Alcohol fermentation​ consists of pyruvate being converted to ethanol. ■ Lactic acid fermentation ​consists of pyruvate reduced directly by NADH to form lactate. ○ Cellular respiration uses oxygen as a reactant to complete breakdown of organic molecules, this occurs in the mitochondria. ○ Carbohydrates, fats, and proteins are the three macromolecules used as fuel (in that order). ● ATP​ , adenosine triphosphate, is composed of adenosine and three phosphate groups that supplies energy for many biochemical cellular processes by undergoing enzymatic hydrolysis especially to ADP. ○ Phosphorylation ​ is the transfer of the terminal phosphate group from ATP to another molecule. ● Redox reactions ​include the transfer of one or more electrons from one reactant to another. ○ Oxidation ​ is the loss of electrons areduction is the addition of electrons (Oil Rig). ○ The ​ electron transport chainis a series of compounds that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons across a membrane. ■ Electrons are passed by increasingly electronegative molecules in the chain until they are caught by oxygen, the most electronegative. ● Respiration occurs in three metabolic stages: glycolysis, Krebs cycle, and oxidative phosphorylation. ○ Oxidative phosphorylation​ is the metabolic pathway in which the mitochondria in cells use their structure, enzymes, and energy released by the oxidation of nutrients to reform ATP. ■ Substrate­level phosphorylation ​generates some ATP that can be found in glycolysis and Krebs cycle. ○ In Krebs cycle each cycle produces one ATP by substrate­level phosphorylation, three NADH, and one FADH₂ per acetyl CoA. ○ The inner mitochondrial membrane couples electron transport to ATP synthesis. Mart 2 ■ ATP synthase ​ is an important enzyme that creates the energy storage molecule ATP.

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Chapter 21, Problem 6RCQ is Solved
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Textbook: Conceptual Physics
Edition: 12
Author: Paul G. Hewitt
ISBN: 9780321909107

This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12. The answer to “How many decibels correspond to the lowest-intensity sound we can hear?” is broken down into a number of easy to follow steps, and 11 words. The full step-by-step solution to problem: 6RCQ from chapter: 21 was answered by , our top Physics solution expert on 04/03/17, 08:01AM. Since the solution to 6RCQ from 21 chapter was answered, more than 332 students have viewed the full step-by-step answer. Conceptual Physics was written by and is associated to the ISBN: 9780321909107. This full solution covers the following key subjects: correspond, Decibels, hear, Intensity, lowest. This expansive textbook survival guide covers 45 chapters, and 4650 solutions.

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