Q14. A missile with a top speed of 3450 km/h is launched in the air. If the temperature of the air is 32°C, what is the Mach number of the missile? [T4]
Kinetic Theory of Gas
The Kinetic Theory of gases is a classical model of gases, according to which gases are composed of molecules/particles that are in random motion. While undergoing this random motion, kinetic energy in molecules can assume random velocity across all directions. It also says that the constituent particles/molecules undergo elastic collision, which means that the total kinetic energy remains constant before and after the collision. The average kinetic energy of the particles also determines the pressure of the gas.
P-V Diagram
A P-V diagram is a very important tool of the branch of physics known as thermodynamics, which is used to analyze the working and hence the efficiency of thermodynamic engines. As the name suggests, it is used to measure the changes in pressure (P) and volume (V) corresponding to the thermodynamic system under study. The P-V diagram is used as an indicator diagram to control the given thermodynamic system.
![Q14. A missile with a top speed of 3450 km/h is launched in the air. If the temperature of the air is
32°C, what is the Mach number of the missile? [T4]
Q15. An ambulance heads to a scene of a car accident to help the injured. The ambulance's siren has a
frequency of 1600 Hz as it approaches you at 75 km/h. If the temperature is 37°C, what frequency do
you hear? [A4]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc9fc7c00-4031-4360-b830-dbba4cd4305a%2F3c064a22-af28-4b68-bdeb-af3510f6ac6e%2Fhepqfn_processed.jpeg&w=3840&q=75)
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