COLLEGE PHYSICS-ACHIEVE AC (1-TERM)
3rd Edition
ISBN: 9781319453916
Author: Freedman
Publisher: MAC HIGHER
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Chapter 19, Problem 62QAP
To determine
(a)
Magnitude and the direction of the force that Earth's magnetic field exerts on a
To determine
(b)
Magnitude and the direction of the force that Earth's magnetic field exerts on a
To determine
(c)
Magnitude and the direction of the force that Earth's magnetic field exerts on a
To determine
(d)
Whether any of the above forces enough to have an appreciable effect on the power lines
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6.
Consider the matrices
G =
0
(3)
-3\
-3
2
and H =
-1
2
0
5
0
5
5
noting that H(:, 3) = 2H(:,1) + H(:, 2).
Is G invertible? Explain your answer.
Is H invertible? Explain your answer.
Use co-factor expansion to find the determinant of H. (Hint:
expand the 2nd or 3rd row)
For the matrix
A =
= ( 6 }) .
explicitly compute by hand (with work shown) the following.
I2A, where I2 is the 2 × 2 identity matrix.
A-1
solving the following linear systems by using A-¹:
c+y= 1
y = 1
(d)
(e)
(f)
A²
find the diagonal entries of A
If 3x−y=12, what is the value of 8x / 2y
A) 212B) 44C) 82D) The value cannot be determined from the information given.
Chapter 19 Solutions
COLLEGE PHYSICS-ACHIEVE AC (1-TERM)
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