Concept explainers
& The speed of sound in an ideal gas is given by the relationship
Want to see the full answer?
Check out a sample textbook solutionChapter 12 Solutions
College Physics
Additional Science Textbook Solutions
Applied Physics (11th Edition)
Conceptual Physics (12th Edition)
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
College Physics
College Physics: A Strategic Approach (4th Edition)
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
- Table 17.1 shows the speed of sound is typically an order of magnitude larger in solids than in gases. To what can this higher value be most directly attributed? (a) the difference in density between solids and gases (b) the difference in compressibility between solids and gases (c) the limited size of a solid object compared to a free gas (d) the impossibility of holding a gas under significant tensionarrow_forwardASSIGNMENT NUMBER1 ON PHY 101 Question 1: The speed of the sound in a gas might depend on the pressure P, the density d, and volume v of the gas. Use dimensional analysis to derive the equation connecting the quantities. Question 2: A ball is projected vertically upwards from the top of a tower 60m high with a velocity 30ms. Calculate: I the maximum height of ball above the ground. Il how long does it take to reach the ground level. Take g 2. -D10msarrow_forwardQuestion 2 If the speed of sound in air at 0 °C is 331 m/s. What will be the speed of sound in air at 50 °C? 299 m/s 142 m/s 331 m/s 360 m/s None of these. A Moving to another question will ave this response. ch 45arrow_forward
- The speed of sound in a gas at T= 100°C is equal to 386.9 m/s. If the temperature of the gas is doubled, then the speed of the sound will be approximately equal to: Select one: O a. 773.8 m/s O b. 547.16 m/s O. 386.9 m/sarrow_forward5. The ideal gas analysis for the root-mean-square velocity of the molecules gives the velocity as. YRT where is the ratio of heat capacities, R is the Universal Gas V = -y M constant, y- is the absolute temperature of the gas, and M is the molecular mass of the molecules. Use this expression to calculate the speed of sound in air for the trial when the 385 Hz tuning fork was used. Compare this value with the values obtained using the resonance tube apparatus.arrow_forwardPROBLEMS 1. Consider a scenario in which supersonic flow is compressed and turned by 18° through an oblique shock. Consider the gas to be calorically perfect Air with upstream properties as follows: M, = 7, P, = 7.5 kPa, T1 = 225 K. Find the following: MI 6=180 (a) shock wave angle, ß. (you can either use the analytical solution from the notes or numerically find the root, whichever method you prefer). (b) downstream Mach number, M3. (c) downstream static pressure, P3. (d) downstream static temperature, T3. (e) total pressure ratio, Po.3 / Po,1- (f) entropy change, (s3-S). (g) use the VT Oblique Shock Calculator Applet to verify your results for this problem.arrow_forward
- At what temperature is the speed of sound in helium (ideal gas, y = 1.67, atomic mass = 4.003 u) the same as its speed in oxygen gas at 9.86 °C? The speed of sound in oxygen at 9.86°C is 322 m/s. Number i Unitsarrow_forwardQuestion 25 In an experiment, two students measured the speed of sound in sea water at room temperature (20°C). Both of the students recorded their results in their notebooks as follows: A) (1515 + 7)m/s B) (1522 + 4) m/s The students then looked up the value for the speed of sound in sea water and found it to be 1531 m/s. Which of the following statements best describes the comparison between the students' results and the accepted value for the speed? The values that the two students found did not agree with each other, but one of the student's answer did agree with the accepted value. The values that the two students found agree with each other but not with the accepted value. The values that the two students found did not agree with each other, nor with the accepted value. The values that the two students found agree with each other and with the accepted value. The values that the two students found were wrong and should have agreed with the accepted value.arrow_forwardQ1- Find the speed of sound in a gas and its molecular weight, given its bulk ‘modulus is 2x10° Nfm?, its density is 10° kg/m’ the gas constant is 8.314 Wmol K. 7= 1.4 and temperature is 298 Karrow_forward
- Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 85 degrees at midnight and the high and low temperature during the day are 102 and 68 degrees, respectively. Assuming t is the number of hours since midnight, find a sine equation for the temperature, D, in terms of t. D(t) = %3Darrow_forwardSound 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…arrow_forwardThe figure shows a standing sound wave in an 80-cm-long tube. The tube is filled with an unknown gas. Take f = 490 Hz (Figure 1) Figure Molecule f : *121* 80 cm What is the speed of sound in this gas? Express your answer with the appropriate units. Usound= μÅ Value Provide Feedback Units Submit Previous Answers Request Answer X Incorrect; Try Again; 7 attempts remaining ?arrow_forward
- 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