HW10

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School

Houston Community College *

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Course

1401

Subject

Physics

Date

Dec 6, 2023

Type

docx

Pages

1

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Chapter 20 3. What is the average range of a young person’s hearing? The average range of a young person's hearing typically extends from about 20 Hz to 20,000 Hz 9. What factors does the speed of sound depend upon? What are some factors that it does not depend upon? The speed of sound depends on factors like temperature, humidity, and the medium through which it travels. 15. What is a reverberation? Reverberation is the persistence of sound in an enclosed space due to multiple reflections of sound waves off surfaces. 23. When you listen to a radio, why do you hear only one station at a time rather than hearing all stations at once? When you listen to a radio, you hear only one station at a time because radios are designed to select and amplify signals at a specific frequency or channel. 29. What beat frequency will occur when a 370-Hz and a 374-Hz sound source are sounded together? The beat frequency that will occur when a 370-Hz and a 374-Hz sound source are sounded together is 4 Hz. Chapter 22 1. What term is used for “electricity at rest”? Electricity at rest" is referred to as electrostatics. 7. What is meant by conservation of charge? Conservation of charge states that the total electric charge in a closed system remains constant. 11. How is Coulomb’s law similar to Newton’s law of gravitation? How is it different? Coulomb's law, which describes the electrostatic force between charged objects, is similar to Newton's law of gravitation in that it is an inverse-square law. However, they differ in terms of the type of force (electrostatic vs. gravitational) and the fundamental constants involved (Coulomb's constant vs. gravitational constant) 25. How is the direction of an electric field defined? The direction of an electric field is defined as the direction a positive test charge would experience a force when placed at a given point in space. 33. Briskly rub a comb through your hair or on a woolen garment and bring it near a small but smooth stream of running water. Is the stream of water deflected? The stream of water was deflected due to the electric charge that has accumulated on the comb.
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