Question

1. An object is flying through a medium that has a measured static pressure of 9,550.08 Pa, density, 0.9 kg/m3, temperature of 256 K. Which of the following is the medium defined in this problem? 2. At 500 ˚R, the speed of sound on a certain medium is 3,210.759146 ft/s. Assuming the ratio of specific heats as 1.66, which of the following is the medium defined in this problem?

Answer 1

The first problem describes a scenario where an object is traversing through air at high altitudes with the specified pressure, temperature and density conditions. The second problem, on the other hand, describes a scenario where certain properties like temperature, speed, and specific heat ratio resemble characteristics similar to the gas helium.

Step-by-step explanation:

The scenarios mentioned in both questions signify a certain type of gas or medium being subjected to physical changes like pressure, temperature and speed. Analyzing these properties gives us an idea about the nature of the medium.

1. For the first problem, the object is going through a medium with certain pressure, density and temperature values (9,550.08 Pa, 0.9 kg/m3, and 256 K, respectively). This resembles the properties of air at very high altitudes, given the specified conditions.

2. For the second problem, certain parameters such as the temperature (500 ˚R), the speed of sound (3,210.759146 ft/s), and ratio of specific heats (1.66) demonstrate characteristics similar to helium, a monatomic gas. The high speed of sound and high ratio of specific heats are telling signs of such a medium.

Learn more about Properties of Gases