Physics of Everyday Phenomena
9th Edition
ISBN: 9781259894008
Author: W. Thomas Griffith, Juliet Brosing Professor
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 15, Problem 4CQ
What does rectification mean and why is it needed in a wave power system? Explain. (See everyday phenomenon box 15.1.)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
5.
a. Draw the EMS and label it.
b. Draw a EMW of frequency 3.5 Hz.
Label the amplitude.
c. Explain why we see the sky as blue,
clouds as white and black color as black.
d. Name three things different between
sound waves and EMW. Draw the
diagram for sound waves.
answer both a and b..Q23
12.10. We will learn in Chapter 14 that brightness of light called its intensity I is inversely
proportional to the square of the distance r² from the light source.
a. As r increases what happens to r² (does it increase or decrease)? What then happens to
I (does it increase or decrease)?
b. Write an equation that relates the two variables I, r² using an unknown constant k.
c. The intensity from a light source is 50 Watts/meter2 when observed from 2 meters away.
What is the value and units of the proportionality constant. What is the equation that relates
the two variables I, r² using an unknown constant k.
d. What intensity do you expect to measure at 10 meters away?
Chapter 15 Solutions
Physics of Everyday Phenomena
Ch. 15 - A wave pulse is transmitted down a Slinky, but the...Ch. 15 - Waves are traveling in an eastward direction on a...Ch. 15 - If the magnet in the buoy described in everyday...Ch. 15 - What does rectification mean and why is it needed...Ch. 15 - A slowly moving engine bumps into a string of...Ch. 15 - A wave can be propagated on a blanket by holding...Ch. 15 - If you increase the frequency with which you are...Ch. 15 - If you increase the speed of a wave on a Slinky by...Ch. 15 - Is it possible to produce a transverse wave on a...Ch. 15 - At sporting events, the crowd sometimes generates...
Ch. 15 - Is it possible to produce a longitudinal wave on a...Ch. 15 - Suppose we double the mass per unit of length of a...Ch. 15 - Prob. 13CQCh. 15 - Prob. 14CQCh. 15 - Suppose we increase the tension in a rope, keeping...Ch. 15 - Is it possible for two waves traveling in the same...Ch. 15 - Prob. 17CQCh. 15 - Prob. 18CQCh. 15 - We can form standing waves on a rope attached to a...Ch. 15 - Prob. 20CQCh. 15 - Prob. 21CQCh. 15 - If we increase the tension of a guitar string,...Ch. 15 - Prob. 23CQCh. 15 - Prob. 24CQCh. 15 - Is it possible for sound to travel through a steel...Ch. 15 - Prob. 26CQCh. 15 - Prob. 27CQCh. 15 - Prob. 28CQCh. 15 - A band playing on a flat-bed truck is approaching...Ch. 15 - When the sound source is moving relative to the...Ch. 15 - Is it possible for sound waves to travel through a...Ch. 15 - Prob. 32CQCh. 15 - Prob. 33CQCh. 15 - What are we measuring when we perform a harmonic...Ch. 15 - How is the musical interval that we call a fifth...Ch. 15 - Prob. 36CQCh. 15 - Prob. 37CQCh. 15 - Two notes close together on the scale, such as do...Ch. 15 - Suppose that water waves coming into a dock have a...Ch. 15 - Suppose that water waves have a wavelength of 3.8...Ch. 15 - A longitudinal wave on a Slinky has a frequency of...Ch. 15 - Prob. 4ECh. 15 - A wave on a string has a speed of 11.5 m/s and a...Ch. 15 - Prob. 6ECh. 15 - A string with a length of 0.75 m is fixed at both...Ch. 15 - Suppose that the string in exercise 7 is plucked...Ch. 15 - Prob. 9ECh. 15 - What is the frequency of a sound wave with a...Ch. 15 - An organ pipe closed at one end and open at the...Ch. 15 - Suppose we start a major scale on concert A, which...Ch. 15 - If fa on a given scale has a frequency of 348 Hz,...Ch. 15 - Prob. 14ECh. 15 - If do has a frequency of 265 Hz and re a frequency...Ch. 15 - Prob. 16ECh. 15 - Prob. 17ECh. 15 - Prob. 1SPCh. 15 - A guitar string has an overall length of 1.25 m...Ch. 15 - A pipe that is open at both ends will form...Ch. 15 - For standard tuning, concert A is defined to have...Ch. 15 - Using the procedure outlined in section 15.5 where...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A sound wave propagates in air at 27C with frequency 4.00 kHz. It passes through a region where the temperature gradually changes and then moves through air at 0C. Give numerical answers to the following questions to the extent possible and state your reasoning about what happens to the wave physically. (a) What happens to the speed of the wave? (b) What happens to its frequency? (c) What happens to its wavelength?arrow_forwardIf the periodic time of triangle wave is determined to be 10 microseconds, what is the frequency of the wave? Select one:a. 1000 Hzb. 100 Hzc. 100 kHzd. 10 kHzarrow_forwardYou tie a steel cable to a small piece of silk. A wave travels on the steel wire before meeting the interface with the silk thread. Fill in the blank by answering (greater, less or equal) and justify. 1. The modulus of the incident wave speed will be transmitted wave. to the modulus of the 2. The incident wavelength will be to the wavelength of the transmitted wave. 3. The frequency of the incident wave will be transmitted wave. to the frequency of thearrow_forward
- b. Find the wavenumber, angular frequency, and initial phase of the wave (each in terms of π). c. Use the values from (a) and (b) as needed to construct a symbolic expression for theposition, y(x,t), of the points on the wire in terms of x, and t, where x in cm, and t inseconds, gives y in cm. d. What is the maximum speed of the points on the wire? Please explain each step when resolving this; that will help to better understand.arrow_forwardIn an attempt to find the frequency of a wave is drawn, the time base was set to 5 ms per division and a trace of the waveform is as shown. What is the frequency? O A. 16.7 Hz O B. 33.3 Hz O C. 50.0 Hz O D. 100 Hzarrow_forwardA speaker suspended high in the air, away from other objects, emits one spherical wave with total energy 5 J. Assume the waves travel at the speed of sound in air: 343 m/s. Draw the wave 2 seconds and 5 seconds after it was emitted. Label the total energy at each of these times. Label the energy per unit area for each of these times. I would like to know how should I approach this problem when it comes to sound waves and how do I apply total energy in this problem?arrow_forward
- Cell phones pick up radio frequencies of approximately 1.85GHz (1.85x109 Hz).a. If the speed of light is ? = 3 × 108m/s, what is the wavelength of these radio waves?b. If I increased the frequency of the radio waves, what would happen to the wavelength?arrow_forward20. A listener traveling at %v (v is the speed of sound) and a source (emitting a 1.50 kHz sound) also traveling at v, are moving towards each other. What is the frequency of the sound heard by the listener? " A. 0.900 kHz B. 1.13 kHz C. 1.50 kHz D. 1.67 kHz O E. 2.50 kHzarrow_forwardQ1.A helium-neon laser, the kind that provides the familiar red light of a classroom demonstrations and supermarket checkout scanners, emits 1 mW of light power into a 1 mm diameter laser beam. What is the intensity of the laser beam?arrow_forward
- Essay. A. What is frequency? B. What is squat?arrow_forwardA mass suspended from a string is pulled down 15 inches from its rest position. The mass is released at time t = 0 and allowed to bounce above and below the rest position 12 times at a constant rate for 10 seconds. A. If, while at rest, the spring hangs 25 inches below where it is attached, determine an equation that models the height of the mass as a function of time, in t seconds. B. Determine the domain and range of this function.arrow_forwardCalculate the wavelength in air at 20 degrees C for sounds in the maximum range of human hearing. The speed of sound in air is 343 m/s. a.) Calculate the wavelength of a 20 Hz wave. b.) Calculate the wavelength of a 20,000 Hz wave. c.) What is the wavelength of a 22 MHz ultrasonic wave appropriate?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningUniversity Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Wave Speed on a String - Tension Force, Intensity, Power, Amplitude, Frequency - Inverse Square Law; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=vEzftaDL7fM;License: Standard YouTube License, CC-BY
Vibrations of Stretched String; Author: PhysicsPlus;https://www.youtube.com/watch?v=BgINQpfqJ04;License: Standard Youtube License