Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN: 9781305387102
Author: Kreith, Frank; Manglik, Raj M.
Publisher: Cengage Learning
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Chapter 8, Problem 8.15P
A mercury bath at
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Find the Laplace Transform of the following functions
1) f() cos(ar)
Ans. F(s)=7
2ws
2) f() sin(at)
Ans. F(s)=
s² + a²
3) f(r)-rcosh(at)
Ans. F(s)=
2as
4)(t)=sin(at)
Ans. F(s)=
2
5) f(1) = 2te'
Ans. F(s)=
(S-1)
5+2
6) (1) e cos()
Ans. F(s) =
(+2)+1
7) (1) (Acostẞr)+ Bsin(Br)) Ans. F(s)-
A(s+a)+BB
(s+a)+B
8) f()-(-)()
Ans. F(s)=
9)(1)(1)
Ans. F(s):
10) f(r),()sin()
Ans. F(s):
11)
2
k
12)
0
13)
0
70
ㄷ..
a 2a 3a 4a
2 3 4
14) f(1)=1,
0<1<2
15) (1) Ksin(t) 0
2. Determine the average normal stress developed in rod AB. The mass is 50kg and the
diameter of the rod AB is 8mm.
B
8 mm
2.64
A 2.75-kN tensile load is applied to a test coupon made from 1.6-mm flat steel plate (E = 200 GPa, v = 0.30).
Determine the resulting change in (a) the 50-mm gage length, (b) the width of portion AB of the test coupon,
(c) the thickness of portion AB, (d) the cross-sectional area of portion AB.
2.75 kN
A
12 mm
50 mm
B
2.75 kN
Chapter 8 Solutions
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
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Heat Transfer [Conduction, Convection, and Radiation]; Author: Mike Sammartano;https://www.youtube.com/watch?v=kNZi12OV9Xc;License: Standard youtube license