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- (a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the distance to the epicenter of the quake, geologists compare the arrival times of S- and P-waves, which travel at different speeds. If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic waves from underground detonations of nuclear bombs can be used to locate the test site and detect violations of test bans. Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves.)a.) An ambulance moving away from you toward cliff ant 12 m/s emits sound a running velocity at fieauency 1000Hz. Yau are toward the clif freqvenuy with of a Z mls, what you ambulunce? Speed of do hear coming directly from 34 0mls. the sound is aj97z b,)৭27 C.)1034 d.71043 b.) What reflected freauency do you herr cliff? hear for saind from the b.) 1043 i.)972 d.) az7A VOcaro0 | Ohline vo.. se Mirsal The Ri.. alió ö Lio Demo document Liveworksheets.co... chnological College Apps Social networks Tihe ocedures Useful Links► Help» This module * Participants » Sulaiman based on Chapter-11 sics 2 What is the frequency of the sound wave in the air when the temperature is 350 K and the wavelength is 0.7 m? (Use speed of sound at 0 C = 331 m/s) of Select one: а. 350 Hz estion b. 245 Hz c. 535.40 Hz Previous page Next page Chapter-12 Optics► actice Quiz Experiment-1, T-2, AY Jump to... 20-21
- A tension of 1500N is applied to a 0.5kg wire that is 10m long. The wavelength of the wave producedis 0.15m.a. Wat is the speed of the wave?b. What is the frequencyc. If the index refraction of diamond is 2.4 what is the frequency and wavelength?d. Based on your answer what can we say about light traveling through?Sound An explosion occurs at a distance of 6.00 km from a person. How long after th explosion, does the person hear it? Assume the temperature is 14.0 °C. 17.671 s 16.771 s 11.671 s 17.071 s a. b. Compute the speed of sound in a monatomic ideal gas at 27.0 °C. Use M = 20.18 kg/kmol. a. C. 443.485 m/s 434.565 m/s 414.135 m/s b. d. 454.435 m/s A sound has an intensity of 3.00 x 108 W/m². What is the sound level in dB? a. C. 34.1712 dB 44.7712 dB 54.6132 dB 54.6321 dB b. d. A tuning fork oscillates at 284 Hz in air. Compute the wavelength of the tone emitted at 25 °C. 3.2912 m 1.1912 m An organ pipe whose length is held constant resonates at a frequency of 224.0 Hz when the air temperature is 15 °C. What will be its resonant frequency when the air temperature is 24 °C? 227.615 Hz 277.115 Hz a. b. a. b. C. d. 10.1361 μm 10.6431 μm C. d. a. 127.634 Hz 237.609 Hz b. An uncomfortably loud sound might have an intensity of 0.54 W/m². Find the maximum displacement of the molecules of air in a…In 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 Hz
- Direction. Select the BEST answer. Write the corresponding CAPITAL LETTER of your choice in a separate sheet of paper. Write E if you find no correct answer. Consider the figure in answering 1 - 4 D H Miny A E B F 1. Wavelength is the horizontal distance in the wave train. Determine the wavelength. A. A & D B. B & D C. D & G D. D & H 2. Which points are the crest? A. B & F B. G & L C. D & H D. C & G 3. Which points are the trough? A. B & F B. C & G C. D & H D. G & L 4. Which points are in-phase? A. A & C B. A & E C. B & H D. C & E 5. How many wavelengths are there from point A to point L? A. 1 λ Β. 1 λ C. 2 A D. 2 λwater waves in a small tank are 7.5-cm long. They pass a I given point at a rate of 2.5 waves per 20 seconds. A) What is the speed of the water waves? B) What is the period (T) of the waves? 78150-24 Filler Paper wide ruledTwo points A and B are on the rope and are 90 cm apart from oneanother. On the rope propagates the transverse waves, so that point Ais at the top of the wave, point B at the bottom of the wave, andbetween them, there are two crests and two troughs. If the wave periodis 0.3 seconds, what is the speed of wave?a. 1.2 m/sb. 12 m/sc. 0.12 m/sd. 1.0 m/s
- ssword IA. We New Message Recipients D Subject pa a whale makes a sound in the Water with a frequency of 300 Hz sound moves at a speed of 1400 m/sin water, and 340 m/s in air. What is the wavelength of that sound in the water? and what is the wavelength and frequency of that sound in the ai? his c act C のthe spec swer? Explain. 29. W A sinusoidal sound wave moves through a mediu is described by the displacement wave function and s(x, t) = 2.00 cos (15.7x - 858t) %3D COS t onds. Find (a) the amplitude, (b) the wavelength. a (c) the speed of this wave. (d) Determine the instan neous displacement from equilibrium of the elements es the medium at the position x = 0.050 0 m at t = 3.00 me (e) Determine the maximum speed of the element's oscil- latory motion. ms.10 Hz. and travels in the A wave has anplitude of 0.35 m. a frequency of 1.05 positive x direction at the speced of light. 3.00 10 m s. Determine the equation that correctly represents this wave. 3.1.