Question

use the graph on the right to answer the following questions.
a. estimate the pressure at altitudes of 9,000 feet, 18,000 feet, and 29,000 feet.
b. estimate the altitudes at which the pressure is 23, 19, and 11 inches of mercury.
c. estimating beyond the boundaries of the graph, at what altitude do you think the atmospheric pressure reaches 5 inches of mercury? is there an altitude at which the pressure is exactly zero? explain your reasoning.
a. the pressure at 9,000 feet is 21 inches of mercury, the pressure at 18,000 feet is 14 inches of mercury, and the pressure at 29,000 feet is 10 inches of mercury. (round to the nearest integer as needed.)
b. the altitude for which the pressure is 23 inches of mercury is 8,000 feet, the altitude for which the pressure is 19 inches of mercury is 13,000 feet, and the altitude for which the pressure is 11 inches of mercury is 27,000 feet. (round to the nearest thousand as needed.)
c. the altitude at which the atmospheric pressure reaches 5 is approximately . (round to the nearest thousand as needed.)

Explanation:

Step1: Observe the trend of the graph

The graph shows a decreasing - trend of atmospheric pressure with increasing altitude. We can estimate values by extending the trend.

Step2: Estimate the altitude for 5 inches of mercury

Looking at the graph's trend, as the pressure decreases, the altitude increases. By extending the curve, we can estimate the altitude. When the pressure is 5 inches of mercury, by observing the trend of the curve and extending it, we find that the altitude is approximately 35000 feet.

Step3: Analyze if pressure can be zero

The atmospheric pressure approaches zero as the altitude increases, but in reality, there is always some trace - amount of gas molecules in the atmosphere, so the pressure will never reach exactly zero. There will always be some very small non - zero pressure due to the presence of air molecules, no matter how high the altitude is.

Answer:

c. 35000 feet; There is no altitude at which the pressure is exactly zero because there will always be some air molecules present in the atmosphere, resulting in a non - zero (albeit very small) pressure.