Applied Physics (11th Edition)
11th Edition
ISBN: 9780134159386
Author: Dale Ewen, Neill Schurter, Erik Gundersen
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 20, Problem 1AC
(a)
To determine
Find the time taken by the radio wave to reach London from New York.
(b)
To determine
Find the time taken by the radio wave to reach London from New York.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
If 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?
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 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?
Electromagnetic waves are a form of radiation that propagates through space and the atmosphere without the need for a material medium. They consist of oscillating electric and magnetic fields that alternate perpendicular to each other and to the direction of propagation. Electromagnetic waves emitted by transmission antennas, such as radio antennas, travel through the atmosphere at the speed of light and can be captured by receiving devices, such as radios, televisions and other electronic devices, allowing distance communication and the transmission of information.
Statement: Radio station antennas emit electromagnetic waves that propagate in the atmosphere at a speed of around 3.0x10^5 km/s and with frequencies that vary from one station to another. If a radio emits a wave of frequency 101.5 MHz then its wavelength is approximately equal to:
Question options:
a) 0.31 m
b) 5.15m
c) 3.63m
d) 1.52 m
e) 2.96 m
Chapter 20 Solutions
Applied Physics (11th Edition)
Ch. 20.2 - Find the distance (in metres) traveled by a radio...Ch. 20.2 - Prob. 2PCh. 20.2 - A television signal is sent to a communications...Ch. 20.2 - How long does it take for a radio signal from the...Ch. 20.2 - The sun is 9.30107mi from the earth. How long does...Ch. 20.2 - A radar wave is bounced off an airplane and...Ch. 20.2 - How long does it take for a radio wave to travel...Ch. 20.2 - How long does it take for a flash of light to...Ch. 20.2 - How long does it take for a police radar beam to...Ch. 20.2 - How far away (in km) is an airplane if the radar...
Ch. 20.2 - An auto mechanic uses a strobe light to time a...Ch. 20.2 - A construction company uses GPS technology to...Ch. 20.2 - (a) How long does it take for light to reach the...Ch. 20.2 - Prob. 14PCh. 20.2 - How long does it take light to reach the earth...Ch. 20.2 - Preparing for reentry, astronauts use radar to...Ch. 20.2 - Prob. 17PCh. 20.2 - Light from the sun travels 1.50108 km to reach the...Ch. 20.3 - c=3.00108m/s =4.55105m f=?Ch. 20.3 - c=3.00108m/s =9.701010m f=?Ch. 20.3 - c=3.00108m/s f=9.701011Hz =?Ch. 20.3 - c=3.00108m/s f=24.2 MHz =?Ch. 20.3 - c=3.00108m/s f=45.6 MHz =?Ch. 20.3 - Prob. 6PCh. 20.3 - Prob. 7PCh. 20.3 - Prob. 8PCh. 20.3 - Find the wavelength of a radio wave from an AM...Ch. 20.3 - Find the wavelength of a radio wave from an FM...Ch. 20.3 - Find the frequency of an electromagnetic wave if...Ch. 20.3 - Find the frequency of an electromagnetic wave if...Ch. 20.3 - Prob. 13PCh. 20.3 - Prob. 14PCh. 20.3 - Prob. 15PCh. 20.3 - An AM radio station broadcasts a signal with a...Ch. 20.4 - Prob. 1PCh. 20.4 - Prob. 2PCh. 20.4 - Prob. 3PCh. 20.4 - Find the frequency of electromagnetic radiation...Ch. 20.4 - Find the frequency of electromagnetic radiation...Ch. 20.4 - Prob. 6PCh. 20.4 - Find the frequency of electromagnetic radiation...Ch. 20.4 - Prob. 8PCh. 20.4 - Prob. 9PCh. 20.4 - Prob. 10PCh. 20.4 - Prob. 11PCh. 20.4 - Prob. 12PCh. 20.4 - An AM radio station in a nearby town broadcasts a...Ch. 20.5 - I=48.0 cd I=___mCh. 20.5 - Prob. 2PCh. 20.5 - I=765 m I=___ cdCh. 20.5 - I=432 m I=___ cdCh. 20.5 - I=75.0 cd I=___ mCh. 20.5 - I=650 m I=___ cdCh. 20.5 - I=900 m r=7.00 ft E=?Ch. 20.5 - I=741 m r=6.50 m E=?Ch. 20.5 - I=893 m r=3.25 ft E=?Ch. 20.5 - E=4.32 lux r=9.00 m I=?Ch. 20.5 - E=10.5 ft-candles r=6.00 ft I=?Ch. 20.5 - Prob. 12PCh. 20.5 - Prob. 13PCh. 20.5 - Prob. 14PCh. 20.5 - If an observer triples her distance from a light...Ch. 20.5 - If the illuminated surface is slanted at an angle...Ch. 20.5 - Find the illumination on a surface by three light...Ch. 20.5 - Find the intensity of two identical light sources...Ch. 20.5 - Find the intensity of two identical light sources...Ch. 20.5 - A desk is 3.35 m below an 1850-m incandescent...Ch. 20 - Which of the following are examples of...Ch. 20 - Prob. 2RQCh. 20 - Prob. 3RQCh. 20 - Light behaves a. as a massive particle. b. always...Ch. 20 - Does the wavelength of light depend on its...Ch. 20 - Prob. 6RQCh. 20 - How does the intensity of illumination depend on...Ch. 20 - In your own words, explain how the speed of light...Ch. 20 - Does light always travel at the same speed?...Ch. 20 - What name is given to the entire range of waves...Ch. 20 - Prob. 11RQCh. 20 - Who developed the wave packet theory of light?Ch. 20 - Who made the first estimate of the speed of light?Ch. 20 - How was the first estimate of the speed of light...Ch. 20 - What are the units of luminous intensity?Ch. 20 - In your own words, explain luminous intensity.Ch. 20 - Find the distance (in metres) traveled by a radio...Ch. 20 - A radar wave that is bounced off an airplane...Ch. 20 - How long does it take for a police radar beam to...Ch. 20 - Prob. 4RPCh. 20 - How long does it take for a radio signal to travel...Ch. 20 - Find the wavelength of a radio wave from an AM...Ch. 20 - Find the frequency of a radio wave if its...Ch. 20 - Prob. 8RPCh. 20 - Prob. 9RPCh. 20 - Prob. 10RPCh. 20 - Prob. 11RPCh. 20 - Prob. 12RPCh. 20 - Prob. 13RPCh. 20 - Find the intensity of the light source necessary...Ch. 20 - Prob. 15RPCh. 20 - Find the intensity of two identical light sources...Ch. 20 - Find the illumination on a surface by three light...Ch. 20 - Prob. 1ACCh. 20 - (a) When the Apollo astronauts landed on the moon,...Ch. 20 - Prob. 3ACCh. 20 - The individual rods on rooftop antennas are...Ch. 20 - Prob. 5AC
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
- The electric field of an electromagnetic wave traveling in vacuum is described by the following wave function: E =(5.00V/m)cos[kx(6.00109s1)t+0.40] j where k is the wavenumber in rad/m, x is in m, t s in Find the following quantities: (a) amplitude (b) frequency (c) wavelength (d) the direction of the travel of the wave (e) the associated magnetic field wavearrow_forwardWhat is the average magnitude of the Poynting vector 5.00 mi from a radio transmitter broadcasting isotropically (equally in all directions) with an average power of 250 kW?arrow_forwardA radio station broadcasts its radio waves with a power of 50,000 W. What would be the intensity of this signal if it is received on a planet orbiting Proxima Centuri, the closest star to our Sun, at 4.243 ly away?arrow_forward
- If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be equal to _____ ? A) 300 m B) 30 m C) 3 m D) 0.3 marrow_forwardWhat are the wavelengths of (a) X-rays of frequency 2.0 × 1017 Hz? (b) Yellow light of frequency 5.1 × 1014 Hz? (c) Gamma rays of frequency 1.0 × 1023 Hz?arrow_forwardWhat is the most amount of time (in minutes) for a signal from the Mars Rover to reach Earth? (This is when Mars and Earth are farthest apart at 401 million km.)arrow_forward
- Suppose a wave is traveling in a medium in which the speed of the wave's0.75c. Determine the maximum magnetic field strength it the maximum electric field strength in the electromagnetic wave is 148 kV/m.arrow_forwardConsider a radio communication signal aimed at Mars from Earth. The distance between Earth and Mars is 54.6 x 109 m. How long does it take the radio wave to reach Mars?arrow_forwardAn FM broadcast station has a transmitting antenna located 50 m above average terrain. How far away could the signal be received by a rooftop antenna 12 m above the ground? Ans: 43.44 km.arrow_forward
- Remember the wave equation is y = lambda For electromagnetic waves traveling in a vacuum, they all travel at the speed of light =c=2.998*10^ 8 s/m. A water wave (a mechanical wave, not an electromagnetic wave!) has a frequency of 20 Hz and a wavelength of 0.1 m. Calculate the speed of this wave. 1/2 * m / s; 6m / s; 3m / s; 2m / s 4 m / sarrow_forwardHow much time is required for reflected sunlight to travel from the moon to the earth if the distance between the moon and the earth is 3.95 x 10^5 km?arrow_forwardIn general, X-rays have wavelengths between 10 nm and 0.01 nm. For an X-ray with a wavelength of 1 nm, what is the corresponding frequency? The speed of light is 3 × 108 m/s. The frequency of the X-ray is _____ × 1016 Hzarrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning
Physics for Scientists and Engineers, Technology ...
Physics
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
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: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
An Introduction to Physical Science
Physics
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:Cengage Learning