Can you please do all of them. Thank you 5) In which of the following materials would sound take the least time to travel1 km?A) vulcanized rubberB) human tissueC) airD) fresh waterE) sea waterPiny ta Mama2| ADo ading quiznbF) glassG) steel6) For the equation given relating the temperature dependence of the speed ofsound in air, what temperature unit has to be used in order to have the resultcome out in a sensible unit?A) RankineB) KelvinC) FahrenheitD) CelsiusE) DelisleF) RéaumurG) Ramer7) The siren of a northbound ambulance is heard differently by folks at differentrelative velocities. For which of the following people is the siren's frequencyperceived as highest?A) the driver of the ambulance, moving with the ambulance but in front of the hornB) the patient in the ambulance, moving with the ambulance but behind the hornC) the person standing still a distance in front of the approaching ambulanceD) the person standing still a distance behind the receding ambulanceE) the driver of a southbound car moving toward the ambulance (driver sees the ambulance throughthe windshield)F) the driver of a southbound car moving away from the ambulance (driver sees the ambulance in therearview mirror)G) the driver of a northbound car moving toward the ambulance (greater speed than the ambulance)H) the driver of a northbound car moving away from the ambulance (lower speed than the ambulance)

5. Sound take the least time to travel 1 km in the medium where the speed is maximum

5) In which of the following materials would sound take the least time to travel 1 km? A) vulcanized rubber B) human tissue C) air D) fresh water E) sea water Fglass G) steel 6) For the equation given relating the temperature dependence of the speed of sound in air, what temperature unit has to be used in order to have the result come out in a sensible unit? A) Rankine B) Kelvin C) Fahrenheit D) Celsius E) Delisle F) Réaumur G Remer

5) In which of the following materials would sound take the least time to travel 1 km? A) vulcanized rubber B) human tissue C) air D) fresh water E) sea water Fglass G) steel 6) For the equation given relating the temperature dependence of the speed of sound in air, what temperature unit has to be used in order to have the result come out in a sensible unit? A) Rankine B) Kelvin C) Fahrenheit D) Celsius E) Delisle F) Réaumur G Remer

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter18: Superposition And Standing Waves

Section: Chapter Questions

Problem 18.1CQ

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(a) Ear trumpets were never very common, but they did aid people with hearing losses by gathering sound over a large area and concentrating it on the smaller area of the eardrum. What decibel increase does an ear trumpet produce it its sound gathering area is 900 cm2 and the area of the eardrum is 0.500 cm2, but the trumpet only has an eficiency of 5.00% in transmitting the sound to the eardrum? (b) Comment on the usefulness of the decibel increase found in part (a).
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 tension
How do sound vibrations of atoms differ from thermal motion?
. The frequency of middle C on the piano is 261.6 Hz. (a) What is the wavelength of sound with this frequency as it travels in air at room temperature? (b) What is the wavelength of sound with this frequency in water?
A sound wave propagates in air at 27C with frequency 4.00 kHz. It passes through a region where the temperature gradually changes and then moves through air at 0C. Give numerical answers to the following questions to the extent possible and state your reasoning about what happens to the wave physically. (a) What happens to the speed of the wave? (b) What happens to its frequency? (c) What happens to its wavelength?
Air temperature in the Sahara Desert can reach 56.0°C (about 134°F). What is line speed of sound in air at that temperature?
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Due to eficiency considerations related to its bow wake, the supersonic transport aircraft must maintain a cruising speed that is a constant ratio to the speed of sound (a constant Mach number]. If the aircraft flies from warm air into colder ail, should it increase or decrease its speed? Explain your answer.
Calculate the speed of sound on a day when a 1500 Hz frequency has a wavelength of 0.221 m.
A tuning fork vibrates producing sound at a frequency of 512 Hz. The speed of sound of sound in air is v=343.00 m/s if the air is at a temperature of 20.00°C . What is the wavelength of the sound?
A sound wave is modeled with the wave function P=1.20Pasin(kx6.28104s1t) and the sound wave travels in air at a speed of v=343.00 m/s. (a) What is the wave number of the sound wave? (b) What is the value for P(3.00 m, 20.00 s)?