Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
4th Edition
ISBN: 9780133942651
Author: Randall D. Knight (Professor Emeritus)
Publisher: PEARSON
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Chapter 17, Problem 35EAP
Two microwave signals of nearly equal wavelengths can generate a beat frequency if both are directed onto the same microwave detector. In an experiment, the beat frequency is
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Chapter 17 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Ch. 17 - Prob. 1CQCh. 17 - If you take snapshots of a standing wave on a...Ch. 17 - Prob. 3CQCh. 17 - Prob. 4CQCh. 17 - Prob. 5CQCh. 17 - Prob. 6CQCh. 17 - Prob. 7CQCh. 17 - Prob. 8CQCh. 17 - Prob. 9CQCh. 17 - 10. A trumpet player hears 5 beats per second when...
Ch. 17 - Prob. 1EAPCh. 17 - FIGURE EX17.2 is a snapshot graph at i = 0 s of...Ch. 17 - Prob. 3EAPCh. 17 - Prob. 4EAPCh. 17 - Prob. 5EAPCh. 17 - Prob. 6EAPCh. 17 - FIGURE EX17.7 shows a standing wave on a string...Ch. 17 - Prob. 8EAPCh. 17 - Prob. 9EAPCh. 17 - 10. The two highest-pitch strings on a violin are...Ch. 17 - A heavy piece of hanging sculpture is suspended by...Ch. 17 - Prob. 12EAPCh. 17 - Prob. 13EAPCh. 17 - What are the three longest wavelengths for...Ch. 17 - Prob. 15EAPCh. 17 - Prob. 16EAPCh. 17 - We can make a simple model of the human vocal...Ch. 17 - The lowest note on a grand piano has a frequency...Ch. 17 - A bass clarinet can be modeled as a 120cmlong...Ch. 17 - Prob. 20EAPCh. 17 - Prob. 21EAPCh. 17 - Prob. 22EAPCh. 17 - Two loudspeakers in a 20C room emit 686Hz sound...Ch. 17 - Prob. 24EAPCh. 17 - What is the thinnest film of MgF2(n1.39) on glass...Ch. 17 - Prob. 26EAPCh. 17 - I FIGURE EX17.27 shows the circular wave fronts...Ch. 17 - Prob. 28EAPCh. 17 - 29. Two in-phase loudspeakers, which emit sound...Ch. 17 - Two in-phase speakers 2.0m apart in a plane are...Ch. 17 - Prob. 31EAPCh. 17 - Prob. 32EAPCh. 17 - A flute player hears four beats per second when...Ch. 17 - Traditional Indonesian music uses an ensemble...Ch. 17 - Two microwave signals of nearly equal wavelengths...Ch. 17 - A 2.0mlong string vibrates at its second-harmonic...Ch. 17 - Prob. 37EAPCh. 17 - Prob. 38EAPCh. 17 - Biologists think that some spiders “tune” strands...Ch. 17 - Prob. 40EAPCh. 17 - Prob. 41EAPCh. 17 - Prob. 42EAPCh. 17 - Prob. 43EAPCh. 17 - A 75g bungee cord has an equilibrium length of...Ch. 17 - Prob. 45EAPCh. 17 - Prob. 46EAPCh. 17 - Prob. 47EAPCh. 17 - Prob. 48EAPCh. 17 - Prob. 49EAPCh. 17 - Prob. 50EAPCh. 17 - Prob. 51EAPCh. 17 - Prob. 52EAPCh. 17 - Prob. 53EAPCh. 17 - Prob. 54EAPCh. 17 - Prob. 55EAPCh. 17 - A 44-cm-diameter water tank is filled with 35 cm...Ch. 17 - Prob. 57EAPCh. 17 - Prob. 58EAPCh. 17 - Two in-phase loudspeakers emit identical 1000 Hz...Ch. 17 - Prob. 60EAPCh. 17 - Two loudspeakers emit sound waves of the same...Ch. 17 - Prob. 62EAPCh. 17 - Prob. 63EAPCh. 17 - Prob. 64EAPCh. 17 - Prob. 65EAPCh. 17 - Engineers are testing a new thin-film coating...Ch. 17 - Prob. 67EAPCh. 17 - Prob. 68EAPCh. 17 - Two loudspeakers in a plane, 5.0 m apart, are...Ch. 17 - Two identical loudspeakers separated by distance...Ch. 17 - Prob. 71EAPCh. 17 - Piano tuners tune pianos by listening to the beats...Ch. 17 - Prob. 73EAPCh. 17 - Prob. 74EAPCh. 17 - Prob. 75EAPCh. 17 - Two radio antennas are separated by 2.0 m. Both...Ch. 17 - Prob. 77EAPCh. 17 - Prob. 78EAPCh. 17 - Prob. 79EAPCh. 17 - Ultrasound has many medical applications, one of...Ch. 17 - Prob. 81EAP
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- A microwave oven is designed to operate at a frequency of 2.2 * 10^9 Hz. Determine the wavelength of these microwaves and the energy of each microwave.arrow_forwardThe range of frequencies used for medical applications includes 1,646,125 Hz. What is the wavelength of this frequency in air at a temperature of 20.0°? 2. 入= x 10 marrow_forwardThe electromagnetic spectrum. Electromagnetic waves, which include light, consist of vibrations of electric and magnetic fields, and they all travel at the speed of light. (a) FM radio. Find the wave- length of an FM radio station signal broadcasting at a frequency of 104.5 MHz. (b) X rays. X rays have a wavelength of about 0.10 nm. What is their frequency? (c) The Big Bang. Microwaves with a wavelength of 1.1 mm, left over from soon after the Big Bang, have been detected. What is their frequency? (d) Sunburn. Sunburn (and skin cancer) is caused by ultraviolet light waves having a frequency of around 1016 Hz. What is their wavelength? (e) SETI. It has been suggested that extraterrestrial civilizations (if they exist) might try to communicate by using electromagnetic waves having the same frequency as that given off by the spin flip of the electron in hy- drogen, which is 1.43 GHz. To what wavelength should we tune our telescopes in order to search for such signals? (f) Microwave ovens.…arrow_forward
- A speed radar aims microwaves with a frequency of 20 GHz at an incoming vehicle traveling at 135 km/h. That vehicle is equipped with a radar detector which provides a measurement of the microwave frequency it detects. As measuring high frequencies is difficult, the detector beats the incoming wave with an on-board source of 20 GHz waves. What is the beat frequency detected by the car? Group of answer choices 750 Hz 9000 Hz 0 Hz 20 GHz 2500 Hzarrow_forwardK:13)arrow_forwardThe speed of sound at 0°C in open air is 331.3m/sec. At what temperature would the wavelength of a 440Hz sound wave be 0.82meters.arrow_forward
- Assume the mostly infrared radiation from a heat lamp acts like a continuous wave with wavelength 1.50 µm . If the lamp’s 200-W output is focused on a person’s shoulder, over a circular area 25.0 cm in diameter, what is the intensity in W/m2?arrow_forwardA source of electromagnetic waves radiates power uniformly in all directions at a single frequency. At a distance of 5.50 km from the source, a detector measures the intensity of the wave to be 26.0 μμW/m2. What is the average power radiated by the source?arrow_forwardThe speed of electromagnetic waves in air is 3.0 × 108 m/s. What is the wavelength of FM radio waves having a frequency of 1.0 × 108 Hz?arrow_forward
- On a 20°C°C night, a bat hovering in the air emits an ultrasonic chirp that has a frequency of 45 kHzkHz. It hears an echo 60 msms later. Suppose the object is an insect flying straight away from the bat. What is the insect's speed if the ultrasonic echo is shifted down in frequency by 750 Hz?arrow_forwardThe speed of electromagnetic waves (which include visible light, radio, and x rays) in vacuum is 3.0 * 10^8 m/s. (a)Wavelengths of visible light waves range from about 400 nm in the violet to about 700 nm in the red.What is the range of frequencies of these waves? (b) The range of frequencies for shortwave radio (for example, FM radio and VHF television) is 1.5 to 300 MHz.What is the corresponding wavelength range? (c) X-ray wavelengths range from about 5.0 nm to about 1.0 * 10-2 nm.What is the frequency range for x rays?arrow_forwardAssume the following waves are propagating in the air, Calculate the wavelength λ1 for gamma rays of frequency f1 = 6.60×1021 Hz . Now express this gamma-ray wavelength in nanometers.arrow_forward
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