INDUSTRIAL MOTOR CONTROL
7th Edition
ISBN: 9780357670590
Author: Herman
Publisher: CENGAGE L
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Question
Chapter 53, Problem 9RQ
To determine
The solid state device that is used to connect the load to the line if an I/O controls an AC voltage.
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(An ellipsoidal trapping region for the Lorenz equations) Show that there is a certain ellipsoidal region E of the form rx2 + σy2 + σ(z − 2r)2 ≤ C such that all trajectories of the Lorenz equations eventually enter E and stay in there forever. For a much stiffer challenge, try to obtain the smallest possible value of C with this property.
A) In a factory, an s-type pitot tube was used to calculate the velocity of dry air for a point
inside a stack.
Calculate the velocity at that point (ft/sec) using following conditions:
●
•
•
Pressure = 30.23 ± 0.01 in Hg (ambient)
Pitot tube coefficient = 0.847 ± 0.03
Temperature = 122 ± 0.1 F (stack)
Temperature = 71.2 ± 0.1 F (ambient)
AP = 0.324 ± 0.008 in H2O (pitot tube)
•
AP = 0.891 ± 0.002 in H2O (stack)
B) Find the dominant error(s) when determining precision for the problem.
C) For part A, what is the precision in ft/sec for the velocity?
Q1/ For what value of x do the power series converge:
8
(-1)n-1.
x2n-1
2n-1
x3 x5
= X
n=1
3
Q2/ Find the Interval of convergence and Radius of convergence of the series:
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(x)"
Chapter 53 Solutions
INDUSTRIAL MOTOR CONTROL
Ch. 53 - Prob. 1RQCh. 53 - Name two differences between PLCs and common home...Ch. 53 - Name the four basic sections of a PLC.Ch. 53 - Prob. 4RQCh. 53 - What device is used to program a PLC?Ch. 53 - What device separates the CPU from the outside...Ch. 53 - 7. What is opto-isloation?
Ch. 53 - Prob. 8RQCh. 53 - Prob. 9RQCh. 53 - Prob. 10RQ
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