Concept explainers
a.
To Identify: The Initial amount, decay factor and decay rate.
a.
Answer to Problem 17CT
Initial amount =1
Decay factor=0.99988
Decay rate=0.012%
Explanation of Solution
Given information: The equation
Formula used:
Calculation:
Let’s compare the given equation with formula.
Initial amount A=1
Decay factor
To find decay rate, let’s solve
Subtract both sides 1.
Divide both sides by -1.
Multiply it by 100% to get decay rate in percent.
b.
To find: Pressure at an altitude of 5000 feet.
b.
Answer to Problem 17CT
Pressure is 0.833 atmosphere.
Explanation of Solution
Given information: Graph the function using graphing calculator and find the P when a =1524 feet.
Calculation:
Let’s graph using online graphing calculator.
Before graph it, it needed to change 5000 feet to meters. Because our ‘a’ represents in meters.
1 meter = 3.28084 foot
So, 5000 feet could be found by dividing 5000 by 3.28084.
So, 5000 feet = 1524 meters
Interpretation: The pressure is 0.833 atmospheres approximately when altitude is 5000 feet(1524 meters).
Chapter 6 Solutions
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