Concept explainers
a.
To calculate: The atmospheric pressure at an altitude of 5000m.
a.
Answer to Problem 3P
51980 Pa
Explanation of Solution
Given information: Height is 5000 m
Formula used:
Calculation: Pressure at an altitude of 5000m is due to the, weight of air above the height of 5000m.
Pressure at 5000 m = Pressure at sea level-X
Average density of air on earth= 0.98kg/m3
From the formula
Pressure at sea level is 100000 Pa
So pressure at 5000m is
b.
To explain: the reason of subtraction of percentage from 1 to get the decay factor.
b.
Explanation of Solution
Given information: Height is 5000 m
We subtract the Percentage decrease from 1 to find the decay factor. From decay factor we can calculate the exponential decay over time .Suppose there is a percentage decrease of 22%. This means percentage decrease is 0.22. So its decay factor will be 0.78.
Chapter 7 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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