EBK MATHEMATICS FOR ELEMENTARY TEACHERS
5th Edition
ISBN: 9780134506609
Author: Beckmann
Publisher: PEARSON CUSTOM PUB.(CONSIGNMENT)
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Chapter 4.4, Problem 11P
Use the distributive property several times to show why
b. Draw an array to show why
c. Relate the steps in your equations in part (a) to your array in part (b).
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2.3 Vibration amplitude of a machine plotted against time shown in Fig. T2.3. is described by
sin(0.8+) In(t + 2)
x(t) =
t + 0.5
Here, t is in seconds and x is in millimeters
0.6
0.4
0.2
°
-0.2
mmm
-0.4
0
10
20
30
40
50
60
70
Time [s]
Fig. T2.3: Machine vibration amplitude variation against time
Obtain the vibration velocity as a function of time, x(t), if it is measured by a vibration velocity sensor.
Chapter 4 Solutions
EBK MATHEMATICS FOR ELEMENTARY TEACHERS
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