Chapter One: Vector Analysis The use of vectors and vector analysis ...
Chapter One: Vector Analysis The use of vectors and vector analysis ...
Chapter One: Vector Analysis The use of vectors and vector analysis ...
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Electromagnetic <strong>The</strong>orem<br />
(Dr. Omed Ghareb Abdullah) University <strong>of</strong> Sulaimani –College <strong>of</strong> Science – Physics Department<br />
Example:<br />
Find the angle between the face diagonals <strong>of</strong> a cube.<br />
Let:<br />
z<br />
(0,0,1)<br />
<br />
x<br />
<br />
<br />
(1,0,0)<br />
(0,1,0)<br />
y<br />
1 0 1 <br />
0 1 1 <br />
∙ 0011<br />
|| √2 ; || √2<br />
∙ ⟹ ∙<br />
<br />
1 2<br />
⟹ 60 °<br />
Problem:<br />
Find the angle between the body diagonals <strong>of</strong> a cube.<br />
Let:<br />
z<br />
(0,0,1)<br />
<br />
x<br />
(1,0,0)<br />
<br />
<br />
(0,1,0)<br />
y<br />
5
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