Introductory Mathematics for Engineering Applications
1st Edition
ISBN: 9781118141809
Author: Nathan Klingbeil
Publisher: WILEY
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Chapter 1, Problem 22P
Repeat Problem P1-21 for the data given in Fig. P1.22
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A surveyor sees a building across the river. Standing at point A he measures the angle of elevation
from the ground to the top of the building to be 30 degrees. He steps back 100 feet and again
measures the angle of elevation and finds it to be 15. (See Figure 12.26.) Assuming that it makes a
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Figure 12.26
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Module Code: MATH380202
3. (a) Let {} be a white noise process with variance σ2.
Define an ARMA(p,q) process {X} in terms of {+} and state (without proof)
conditions for {X} to be (i) weakly stationary and (ii) invertible.
Define what is meant by an ARIMA (p, d, q) process. Let {Y} be such an ARIMA(p, d, q)
process and show how it can also be represented as an ARMA process, giving the
AR and MA orders of this representation.
(b) The following tables show the first nine sample autocorrelations and partial auto-
correlations of X and Y₁ = VX+ for a series of n = 1095 observations. (Notice
that the notation in this part has no relationship with the notation in part (a) of
this question.)
Identify a model for this time series and obtain preliminary estimates for the pa-
rameters of your model.
X₁
= 15.51, s² = 317.43.
k
1
2
3
4
5
6
7
Pk
0.981
0.974
0.968
akk 0.981 0.327
8
9
0.927
0.963 0.957 0.951 0.943 0.935
0.121 0.104 0.000 0.014 -0.067 -0.068 -0.012
Y₁ = VX : y = 0.03, s² = 11.48.
k
1…
Chapter 1 Solutions
Introductory Mathematics for Engineering Applications
Ch. 1 - A constant force F=2N is applied to a spring and...Ch. 1 - The spring force F and displacement x for a...Ch. 1 - The spring force F and displacement x for a...Ch. 1 - In a bolted connection shown in Fig. P1.4. the...Ch. 1 - Repeat problem P1.14 for the data given in Fig...Ch. 1 - The velocity v (t ) of a ball thrown upward...Ch. 1 - The velocity v (r ) of a ball thrown upward...Ch. 1 - A model rocket is fired in the vertical plane. The...Ch. 1 - A model rocket is fired in the vertical plane. The...Ch. 1 - The velocity of a vehicle is measured at two...
Ch. 1 - The velocity of a vehicle is measured at two...Ch. 1 - The velocity v (t ) of a vehicle during braking is...Ch. 1 - A linear trajectory is planned for a robot to pick...Ch. 1 - The acceleration of the linear trajectory of...Ch. 1 - The temperature distribution in a well-insulated...Ch. 1 - The temperature distribution in a well-insulated...Ch. 1 - The voltage-current relatonship for the cicuit...Ch. 1 - A voltage source Vs is used to apply two different...Ch. 1 - Repeat problem P1-18 for the data shown in Fig,...Ch. 1 - Repeat problem P1-18 for the data shown in Fig...Ch. 1 - A linear model of a diode is shown in Fig. P1.21....Ch. 1 - Repeat Problem P1-21 for the data given in Fig....Ch. 1 - The output voltage, v0, of the Op-Amp circuit...Ch. 1 - The output voltage, v0, of the Op-Amp circuit...Ch. 1 - A DC motor is driving an inertial load JL shown in...Ch. 1 - Repeat problem P1-25 for the data shown in Fig....Ch. 1 - In the active region, the output voltage v0 of the...Ch. 1 - Repeat problem P1-27 for the data given in Fig,...Ch. 1 - An actuator used in a prosthetic arm can produce...Ch. 1 - The following two measurements of maximum heart...Ch. 1 - The electrical activity of muscles can he...Ch. 1 - A civil engineer needs to establish the elevation...Ch. 1 - A thermocouple is a temperature measurement...Ch. 1 - The voltage across a thermocouple is calibrated...Ch. 1 - An iron-constantan thermocouple is calibrated by...Ch. 1 - Prob. 36PCh. 1 - Repeat problem P1-36 for the data shown in Fig....Ch. 1 - To determine the concentration of a purified...Ch. 1 - Repeat problem P1-38 lithe absorption-...Ch. 1 - A chemistry student is performing in experiment to...Ch. 1 - To obtain the linear relationship between the...Ch. 1 - A thermostat control with dial marking from 0 to...Ch. 1 - In a pressure-fed journal bearing, forced cooling...
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