Physics For Scientists & Engineers, Vols. 1 & 2, And Masteringphysics With E-book Student Access Kit (4th Edition)
4th Edition
ISBN: 9780321542144
Author: Douglas C. Giancoli
Publisher: Addison Wesley
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 31, Problem 47GP
A radio voice signal from the Apollo crew on the Moon (Fig. 31–25) was beamed to a listening crowd from a radio speaker. If you were standing 25 m from the loudspeaker, what was the total time lag between when you heard the sound and when the sound entered a microphone on the Moon and traveled to Earth?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
An important news announcement is transmitted by radio waves to people sitting next to their radios 100 km from the station and by sound waves to people sitting across the newsroom 3.00 m from the newscaster. Taking the speed of sound in air to be 343 m/s, who receives the news first? Explain.
In communicating with an astronaut on the moon, 3.8 108 m from earth, what is the minimum time delay in getting a response to a question?
A person on earth communicating via radio transmission with an astronaut on the moon asks a question. At the time of transmission the moon is 4.00 x 10^5 km from earth, and the speed of radio waves if 3.00 x 10^8 m/s. How long must the person on earth wait for a response if the astronaut answers 2.50 s after the message is received?
Chapter 31 Solutions
Physics For Scientists & Engineers, Vols. 1 & 2, And Masteringphysics With E-book Student Access Kit (4th Edition)
Ch. 31.4 - Prob. 1AECh. 31.6 - Return to the Chapter-Opening Question, page 812,...Ch. 31.6 - What are the frequencies of (a) an 80-m-wavelength...Ch. 31.6 - Prob. 1DECh. 31.6 - If you are on the phone via satellite to someone...Ch. 31.6 - If your voice traveled as a sound wave, how long...Ch. 31 - An electric field E points away from you, and its...Ch. 31 - Prob. 2QCh. 31 - Prob. 3QCh. 31 - The electric field in an EM wave traveling north...
Ch. 31 - Is sound an electromagnetic wave? If not, what...Ch. 31 - Can EM waves travel through a perfect vacuum? Can...Ch. 31 - When you flip a light switch, does the overhead...Ch. 31 - Are the wavelengths of radio and television...Ch. 31 - What does the wavelength calculated in Example...Ch. 31 - Prob. 11QCh. 31 - In the electromagnetic spectrum, what type of EM...Ch. 31 - Can radio waves have the same frequencies as sound...Ch. 31 - Discuss how cordless telephones make use of EM...Ch. 31 - Can two radio or TV stations broadcast on the same...Ch. 31 - If a radio transmitter has a vertical antenna,...Ch. 31 - The carrier frequencies of FM broadcasts are much...Ch. 31 - A lost person may signal by flashing a flashlight...Ch. 31 - Determine the rate at which the electric field...Ch. 31 - Prob. 2PCh. 31 - At a given instant, a 2.8-A current flows in the...Ch. 31 - Prob. 4PCh. 31 - Prob. 5PCh. 31 - Prob. 6PCh. 31 - Prob. 7PCh. 31 - If the electric field in an EM wave has a peak...Ch. 31 - Prob. 9PCh. 31 - In an EM wave travelling west, the B field...Ch. 31 - Prob. 11PCh. 31 - Consider two possible candidates E(x, t) as...Ch. 31 - What is the frequency of a microwave whose...Ch. 31 - (a) What is the wavelength of a 25.75 109 Hz...Ch. 31 - How long does it take light to reach us from the...Ch. 31 - An EM wave has frequency 8.56 1014Hz. What is its...Ch. 31 - Electromagnetic waves and sound waves can have the...Ch. 31 - Prob. 18PCh. 31 - Prob. 19PCh. 31 - Prob. 20PCh. 31 - What is the minimum angular speed at which...Ch. 31 - Prob. 22PCh. 31 - The magnetic field in a traveling EM wave has an...Ch. 31 - Prob. 24PCh. 31 - A spherically spreading EM wave comes from a...Ch. 31 - Prob. 26PCh. 31 - Prob. 27PCh. 31 - A 15.8-mW laser puts out a narrow beam 2.00 mm in...Ch. 31 - Estimate the average power output of the Sun,...Ch. 31 - Prob. 30PCh. 31 - How practical is solar power for various devices?...Ch. 31 - The Arecibo radio telescope in Puerto Rico can...Ch. 31 - Estimate the radiation pressure due to a 75-W bulb...Ch. 31 - Prob. 35PCh. 31 - Prob. 36PCh. 31 - What size should the solar panel on a satellite...Ch. 31 - What is the range of wavelengths for (a) FM radio...Ch. 31 - Estimate the wavelength for 1.9-GHz cell phone...Ch. 31 - The variable capacitor in the tuner of an AM radio...Ch. 31 - A certain FM radio tuning circuit has a fixed...Ch. 31 - A satellite beams microwave radiation with a power...Ch. 31 - A 1.60-m-long FM antenna is oriented parallel to...Ch. 31 - Who will hear the voice of a singer first: a...Ch. 31 - Prob. 45GPCh. 31 - Prob. 46GPCh. 31 - A radio voice signal from the Apollo crew on the...Ch. 31 - Cosmic microwave background radiation fills all...Ch. 31 - What are E0 and B0 2.00 m from a 75-W light...Ch. 31 - Prob. 50GPCh. 31 - Prob. 51GPCh. 31 - How large an emf (rms) will he generated in an...Ch. 31 - The average intensity of a particular TV stations...Ch. 31 - A radio station is allowed to broadcast at an...Ch. 31 - A point source emits light energy uniformly in all...Ch. 31 - Suppose a 35-kW radio station emits EM waves...Ch. 31 - What is the maximum power level of a radio station...Ch. 31 - In free space (vacuum), where the net charge and...Ch. 31 - The metal walls of a microwave oven form a cavity...Ch. 31 - Imagine that a steady current I flows in a...Ch. 31 - Prob. 61GPCh. 31 - Suppose that a right-moving EM wave overlaps with...Ch. 31 - The electric and magnetic fields of a certain EM...
Additional Science Textbook Solutions
Find more solutions based on key concepts
(a) Find the energy stored in the flywheel of Exercise 33 when its rotating at 360 rpm. (b) The wheel is attach...
Essential University Physics: Volume 1 (3rd Edition)
17. (II) Compute the voltage drop along a 21-m length of household no. 14 copper wire (used in 15-A circuits). ...
Physics: Principles with Applications
3. The position graph of Figure P2.3 shows a dog slowly sneaking up on a squirrel, then putting on a burst of s...
College Physics: A Strategic Approach (3rd Edition)
How are the outer planets different from the inner planets aside from their location?
Conceptual Integrated Science
The effective focal length of the eye.
Physics (5th Edition)
51. I A tennis player hits a ball 2.0 m above the ground. The ball leaves his racquet with a speed of 20.0 m/s ...
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
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
- Radio station WWVB, operated by the National Institute of Standards and Technology (NIST) from Fort Collins, Colorado, at a low frequency of 60 kHz, broadcasts a time synchronization signal whose range covers the entire continental US. The timing of the synchronization signal is controlled by a set of atomic clocks to an accuracy of 101012 s, and repeats every 1 minute. The signal is used for devices, such as radio-controlled watches, that automatically synchronize with it at preset local times. WWVB's long wavelength signal tends to propagate close to the ground. (a) Calculate the wavelength of the radio waves from WWVB. (b) Estimate the error that the travel time of the signal causes in synchronizing a radio controlled watch in Norfolk, Virginia, which is 1570 mi (2527 km) from Fort Collins, Colorado.arrow_forwardAn important news announcement is transmitted by radio waves to people who are 85 km away, sitting next to their radios, and by sound waves to people sitting across the newsroom, 3.0 m from the newscaster. Calculate the time for each signal to reach each group of people, then determine who receives the news first …Listeners or people in the newsroom?arrow_forwardRadio-controlled clocks throughout the United States receivea radio signal from a transmitter in Fort Collins, Colorado,that accurately (within a microsecond) marks the beginningof each minute. A slight delay, however, is introducedbecause this signal must travel from the transmitter to theclocks. Assuming Fort Collins is no more than 3000 km fromany point in the U.S., what is the longest travel-time delay?arrow_forward
- A computer user finds that his wireless router transmits data at a rate of 75 Mbps (megabits per second). Compare the average time to transmit one bit of data with the time difference between the wifi signal reaching an observer’s cell phone directly and by bouncing back to the observer from a wall 8.00 m past the observer.arrow_forwardA person on earth communicating via radio transmission with an astronaut on the moon asks a question. At the time of transmission the moon is 4.00 x 10^5 km from the earth, and the speed of radio waves is 3.00 x 10^8 m/s. How long must the person on earth wait for a response if the astronaut answers 2.50 seconds after the message is received?arrow_forwardIf the distance from an antenna on Earth to a geosynchronous communications satellite is 26000 miles, given that there are 1.61 kilometers per mile, and radio waves travel at the speed of light (3.0 x 108 meters/sec), how many milliseconds does it take for a signal from the antenna to reach the satellite?arrow_forward
- If the Sun suddenly turned off, we would not knowit until its light stopped coming. How long would that be,given that the Sun is 1.496 × 1011 m away?arrow_forwardAbout how far apart must you hold your hands for them to be separated by 1.0 nano-light-second (the distance light travels in 1.0 ns)?arrow_forwardA father and his daughter are interested in the same baseballgame. The father sits next to his radio at home and listens tothe game; his daughter attends the game and sits in the outfieldbleachers. In the bottom of the ninth inning a home run is hit.If the father’s radio is 132 km from the radio station, and thedaughter is 115 m from home plate, who hears the home run first?(Assume that there is no time delay between the baseball being hitand its sound being broadcast by the radio station. In addition, letthe speed of sound in the stadium be 343 m>s.)arrow_forward
- In the “red shift” of radiation from a distant galaxy, the light Hy, known to have a wavelength of 434 nm when observed in the laboratory, appears to have a wavelength of 462 nm. What is the speed of the galaxy in the line of sight relative to the Earth?arrow_forwardThe team monitoring a space probe exploring the outer solar system finds that radio transmissions from the probe take 2.53 hours to reach earth. How distant (in meters) is the probe?arrow_forwardComment on the relationship between the inter-element distance (7.5cm) and a wavelength of an EM wave (0.15m). What would be the effect on the inter-element distance if an EM wave at a higher frequency was used, assuming all other parameters were required to stay the same.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- College PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax CollegeGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College Physics
Physics
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:OpenStax College
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
What Are Electromagnetic Wave Properties? | Physics in Motion; Author: GPB Education;https://www.youtube.com/watch?v=ftyxZBxBexI;License: Standard YouTube License, CC-BY