The Science and Engineering of Materials (MindTap Course List)
7th Edition
ISBN: 9781305076761
Author: Donald R. Askeland, Wendelin J. Wright
Publisher: Cengage Learning
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Textbook Question
Chapter 19, Problem 19.1P
Of the metals listed in Table 19-1, which are the most and least conductive?
Expert Solution & Answer
To determine
The most and least conductive metal from the table 19-1.
Answer to Problem 19.1P
The most conductive metal from table 19-1 A is silver and the least conductive metal is gallium.
Explanation of Solution
Conductivity is the properties of the material by which it can be determined how much an electric charge or heat is passing through the material. A conductor has very little amount of resistance. Materials can be classified into metals, non-metals, semiconductors and insulators. Among these metals are the most conductivity and insulators like (ceramics, woods and plastics) have very little conductivity.
From the given table 19-1 A the silver (Ag) has the highest value of conductivity and gallium (Ga) has the least value of conductivity. So, silver is most conductive and Gallium is the least conductive.
The most conductive metal from table 19-1 A is silver and the least conductive metal is gallium.
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College of Applied Engineering
Al-Muzahmiyah Branch
Statics (AGE 1330) Section-1483
Quiz-2
Time: 20 minutes
Date: 16/02/2025
Q.1. A swinging door that weighs w=400.0N is supported by
hinges A and B so that the door can swing about a vertical'
axis passing through the hinges (as shown in below figure).
The door has a width of b=1.00m and the door slab has a
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For the walking-beam mechanism shown in Figure 3, find and plot the x and y coordinates of the
position of the coupler point P for one complete revolution of the crank O2A. Use the coordinate
system shown in Figure 3. Hint: Calculate them first with respect to the ground link 0204 and
then transform them into the global XY coordinate system.
y
-1.75
Ꮎ
Ꮎ
4
= 2.33
0242.22
L4
x
AP = 3.06
L2 = 1.0
W2
31°
B
03 L3 = 2.06
P
1
8
5
.06
6
7
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The link lengths, gear ratio (2), phase angle (Ø), and the value of 02 for some geared five bar
linkages are defined in Table 2. The linkage configuration and terminology are shown in Figure
2. For the rows assigned, find all possible solutions for angles 03 and 04 by the vector loop
method. Show your work in details: vector loop, vector equations, solution procedure.
Table 2
Row
Link 1 Link 2
Link 3
Link 4
Link 5
λ
Φ
Ө
a
6
1
7
9
4
2
30°
60°
P
y 4
YA
B
b
R4
R3
YA
A
Gear ratio:
a
02
d
05
r5
R5
R2
Phase angle: = 0₂-202
R1
05
02
r2
Figure 2.
04
X
Chapter 19 Solutions
The Science and Engineering of Materials (MindTap Course List)
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