b) Determine the speed of sound in air at 800 K and determine the Mach number...

Question

Question

b) Determine the speed of sound in air at 800 K and determine the Mach number of an aircraft moving in air at a velocity of 3

Answer 1

✔ Recommended Answer

Answer #1

T = 800K = 800-273 = 527°C Speed of sound in air, v = 331.4 +0.6T = 331.4 +0.6 x 527) = 647.6ms -1 Mach number, M= speed of a

Answer 2

Similar Homework Help Questions

(D2) Which of the air and aircraft properties define the airs speed of sound and the...

(D2) Which of the air and aircraft properties define the airs speed of sound and the aircraft's Mach number? (3.6/3.7) A static pressure and density o B. density and aircraft velocity ° C. temperature and static pressure O D total pressure and static pressure OE temperature and aircraft velocity
9. An ambulance truck emits a sound with a frequency of 800 Hz. (the speed of...

9. An ambulance truck emits a sound with a frequency of 800 Hz. (the speed of sound in air at 20 Celsius is 343 m/s). (a) What is the frequency detected by a stationary observer if the ambulance truck moving 30 m/s toward the observer? (b) What frequency will b detected if the ambulance is moving 30 m/s away from the observer?
(a) A high speed (Mach number > 0.3) aircraft is flying at an altitude where the...

(a) A high speed (Mach number > 0.3) aircraft is flying at an altitude where the temperature and pressure is 2°C and 97 kPa. Its flight velocity is measured by a probe which records a dynamic pressure of 20 density is 13600 kg/ml. Find the reading of the manometer given k=1.4 and R=0.287 kJ/kg-K.

7.8. Air at 800°R and 15 psia is flowing at a Mach number of M =...

7.8. Air at 800°R and 15 psia is flowing at a Mach number of M = 1.8 and is deflected through a 15° angle. The directional change is accompanied by an oblique shock. (a) What are the possible shock angles? (b) For each shock angle, compute the temperature and pressure after the shock.
2. The speed of sound in air at room temperature is 344 m/s. a) Determine the...

2. The speed of sound in air at room temperature is 344 m/s. a) Determine the wavelength of a sound with a frequency of 287 Hz b) Determine the frequency of a sound with a wavelength of 0.85 m.
Air enters an isothermal nozzle at a temperature of 300 K, and a velocity of 10...

Air enters an isothermal nozzle at a temperature of 300 K, and a velocity of 10 m/s. The nozzle is very poorly insulated, causing a stray heat transfer rate of 10 kW into the system. The outlet of the nozzle is exposed to an ambient pressure of 1 bar and is choked (Mach = 1). If the area ratio of the nozzle (A, /A2) is 5, what is: The velocity of the nozzle outlet, in [m/s], if the specific heat...

2. Air enters an isothermal nozzle at a temperature of 300 K, and a velocity of...

2. Air enters an isothermal nozzle at a temperature of 300 K, and a velocity of 10 m/s. The nozzle is very poorly insulated, causing a stray heat transfer rate of 10 kW into the system. The outlet of the nozzle is exposed to an ambient pressure of 1 bar and is choked (Mach 1. If the area ratio of the nozzle (A1/A2) is 5, what is: a. The velocity of the nozzle outlet, in [m/s], if the specific heat...
Air flowing with a Mach number of 2 with a pressure of 80 kPa and a...

Air flowing with a Mach number of 2 with a pressure of 80 kPa and a temperature of 30°C passes over a component of an aircraft that can be modeled as a wedge with an included angle of 8° that is aligned with the flow. The flow is turned through an angle of 4°, leading to the generation of an oblique shock wave. Find after the oblique shock: a) the pressure b) the temperature. c) the Mach number after the...
Tutorial Sound Waves . A sound source which produces sound of frequency 300 Hz moves along...

Tutorial Sound Waves . A sound source which produces sound of frequency 300 Hz moves along a straight line and passes by a stationary observer. The observer notices that the frequency of sound heard change Speed of sound in air 330 m s-1] 0when the sound is moving away from him. Determine the speed of the sound source. its siren emitting a sound of frequency 600.0 Hz moves with a speed of me that the speed of sound is 345...

A bat flying at 17.1 m/s (ground speed) emits a 503 Hz sonar ping. The sound...

A bat flying at 17.1 m/s (ground speed) emits a 503 Hz sonar ping. The sound returns after 1.302 seconds at frequency 575 Hz. Assume the Speed of Sound in this type of air is 343 m/s. Determine the Velocity of the object, in m/s relative to the ground. Take "moving away" as Positive.