College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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On a hot summer day, the temperature of air in Arizona reaches 101°F. What is the speed of sound in air at this temperature? (The speed of sound at 0°C is 331 m/s. Use the conversion 0°C = 273 K as necessary.)
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- A piston–cylinder device contains steam initially at 1 MPa, 450°C, and 2.5 m3. Steam is allowed to cool at constant pressure until it first starts condensing. Show the process on a T-v diagram with respect to saturation lines and determine (a) the mass of the steam, (b) the final temperature, and (c) the amount of heat transfer.arrow_forwardWhat is your measurement of speed of sound in air in m/s? The number should have three significant digits. Your Answer: Answer unitsarrow_forwardItem 9 Learning Goal: To learn the properties of logarithms and how to manipulate them when solving sound problems. The intensity of sound is the power of the sound waves divided by the area on which they are incident. Intensity is measured in watts per square meter, or W/m². The human ear can detect a remarkable range of sound intensities. The quietest sound that we can hear has an intensity of 10-¹2 W/m², and we begin to feel pain when the intensity reaches 1 W/m². Since the intensities that matter to people in everyday life cover a range of 12 orders of magnitude, intensities are usually converted to a logarithmic scale called the sound intensity level 3, which is measured in decibels (dB). For a given sound intensity I, B is found from the equation ß = (10 dB) log (1). where Io = 1.0 × 10-¹2 W/m². Part A What is the value of log(1,000,000)? Express your answer as an integer. ► View Available Hint(s) The logarithm of x, written log(x), tells you the power to which you would raise 10…arrow_forward
- A 190-Hz sound travels through pure neon. The wavelength of the sound is measured to be 2.29 m. What is the speed of sound in neon?m/sarrow_forwardA Moving to another question will save this response. Question 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. AMoving to another question will save this response. ch 45arrow_forwardyou do hot have a thermometer to measure temp you are able to measures the speed of sound through the air. if you measure the sound to be 349m/s. what is the air temp? V=331.4m/s + (0.606m/s/1°C)T apply this formula and answer with the exact valuearrow_forward
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- 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_forwardA student under water clicks two rocks together and makes a sound with a frequency of 639.0 Hz and a wavelength of 2.4 m. What is the speed of this underwater sound? m/sarrow_forwardIn the upper atmosphere at altitudes where commercial airlines travel, we find extremely cold tempera-tures. What is the speed of sound (in metric units) for a temperature of -55 ◦ C? Calculate to one decimal.arrow_forward
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