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A building (or machine) is shaken by a periodic force f(t) defined bye -C, --st<- f(t) = 3C, st< 20 20 st<

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter6: Introduction To Mechanical Properties

Section: Chapter Questions

Problem 6.3P: Compare the engineering and true secant elastic moduli for the natural rubber in Example Problem 6.2...

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Question

A=12 B=12 C=7 D=7

A building (or machine) is shaken by a periodic force f(t) defined bye
-C,
-<t<-
--
f(t) = 3C,
st<
-
20
20
-C;
20 st<
(a) (1)
Insert YOUR parameter value C for YOUR force f(t).
(ii)
State the period of f(t).
2n
(iii) Sketch f(t) over the domain
<t<
(iv) State with reason(s) whether the function is odd, even, or neither.
(v)
Determine the first four non-zero coefficients in the Fourier series for f(t).
(b) Write down the first four non-zero coefficients in the Fourier series for
g(t) = f(t) – C.-

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