An underwater sonar source operating at a frequency of 60 kHz directs its beam towards the surface. If velocity of sound in air is 330m/s, wavelength and frequency of the waves in air are ___________ a) 5.5mm, 60 kHz b) 5.5mm, 30 kHz c) 5.5mm, 30 kHz d) 5.5mm, 80 kHz
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An underwater sonar source operating at a frequency of 60 kHz directs its beam towards the surface. If velocity of sound in air is 330m/s, wavelength and frequency of the waves in air are ___________
a) 5.5mm, 60 kHz
b) 5.5mm, 30 kHz
c) 5.5mm, 30 kHz
d) 5.5mm, 80 kHz
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- 72 waves pass through a fixed point in 1.5 minutes. the speed of the waves is 4 m/s. the wavelength of the waves will beGood day, Maam/Sir. I hope you can help me to my study. Thank you!! Topic: Sound and Hearing Problem: A baby’s mouth is 40.0cm from her father’s ear and 4.00m from her mother’s ear. What is the difference between the sound intensity levels heard by the father and by the mother?Which of the following statements is true? A sound wave will stop when it reaches the boundary or end of the medium. The properties of the medium do not affect the speed of sound. When a wave reaches the end of the medium or encounters an obstacle such as a wall, most of the sound wave reflected by the walls and little is absorbed. When a sound wave travels through a medium, particles are transferred from one place to another.
- Red light has a frequency of 4.0 x 1014 its wavelength? Hz and a speed of 3.0 x 10° m/s. What is O 750 x 10-7 m O 750 cm O13x10° m O 1.3 10 m O 750 nm 12 m2. Make a matrix of the general properties of the waves showing the following parameters.(5) Please don't write on a paper. I can't understand handwritten. Find the frequency of a yellow light with a wavelength of 3.45E-7 nm? a. 8.70E23 Hz b. 1.04E-7 Hz c. 103.5 Hz d. 8.70E14 Hz
- A fisherman notices that his boat is moving up and down periodically following the ocean waves. It takes 2.5 seconds for the boat to travel from its highest point lowest, a total distance of 0.62 meter. The fisherman sees that the crests are spaced 6.0 meters apart. [Seorang nelayan meyedari yang sampannya bergerak naik dan turun secara berkala mengikut ombak laut seperti ditunjukkan Rajah 3. la mengambil masa 2.5 saat untuk sampan bergerak dari titik ketinggian maksimum ke minimum, yang jarak keseluruhannya 0.62 meter. Nelayan tersebut melihat jarak puncak antara gelombang adalah 6.0 meter. Tentukan:] (a) its (i) wavelength of the wave, .. [panjang gelombang, à] (ii) frequency of the wave, f. [frequensi gelombang, f.] (iii) speed of the wave, v. [laju gelombang, v.] (iv) sketch the full image of the boat. [Lakarkan gambarajah bot tersebut. 3 I 3 Page +Dolphins can use sonar to detect objects in the sea. How far away is the object from the dolphin if the sonar takes .02 sec to be returned? Sound travels at 1484 m/s in sea water. 60 m 30 m 15 m 7.5 mWhat is the wavelength of wave with frequency 57 x108 Hz? OPTIONS: 5.3 cm 2.4 cm 3.4 cm 2.8 cm
- A dolphin emits a pulse of sound waves (longitudinal wave) toward an object at 200 m from the dolphin. How long after the dolphin emits a wave is its reflection if the bulk modulus and the density of seawater are given by B = 2 x 1094 = 1.025 x 103 kg/ m3 a) 0.29 s b) 0.43 s c) 0.57 s d) 0.71 s O 1. d chAn audio system is emitting a sound at a frequency of 676 Hz through two speakers separated by a distance d = 0.620 m. What's the shortest distance for a person to hear maximum intensity if he was facing the speaker on the right (see picture).2) Three waves are described by the following equations: Y1 = (0.1m) sin[(2лs¯¹)t + (3πm¯¹)x] y2 = (-0.2m) sin[(3πs¯¹)t - (2πm-1)x] y3 = (0.3m) sin[(4πs¯¹)t − (4πm¯¹)x] Rank the wavelengths of these waves from largest to smallest. Scientific Abilities Is able to extract the information from representations correctly Missing No visible attempt is made to extract information from the problem text. Inadequate Information that is extracted contains errors such as labeling quantities incorrectly, mixing up initial and final states, choosing a wrong system, etc. Physical quantities have no subscripts (when those are needed). Needs Improvement Some of the information is extracted correctly, but not all of the information. For example, physical quantities are represented with numbers there are no units. Or directions are missing. Subscripts for physical quantities are either Adequate All necessary information has been extracted correctly and written in a comprehensible way. Objects, systems,…