
Mathematics for Machine Technology
7th Edition
ISBN: 9781133281450
Author: John C. Peterson, Robert D. Smith
Publisher: Cengage Learning
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Chapter 18, Problem 18A
To determine
(a)
To the ratio of lowest fractional values.
To determine
(b)
To the ratio of lowest fractional values.
To determine
(c)
To the ratio of lowest fractional values.
To determine
(d)
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Good Day, Please assist with this query.
4. Consider Chebychev's equation
(1 - x²)y" - xy + λy = 0
with boundary conditions y(-1) = 0 and y(1) = 0, where X is a constant.
(a) Show that Chebychev's equation can be expressed in Sturm-Liouville form
d
· (py') + qy + Ary = 0,
dx
y(1) = 0, y(-1) = 0,
where p(x) = (1 = x²) 1/2, q(x) = 0 and r(x) = (1 − x²)-1/2
(b) Show that the eigenfunctions of the Sturm-Liouville equation are extremals of the
functional A[y], where
A[y]
=
I[y]
J[y]'
and I[y] and [y] are defined by
-
I [y] = √, (my² — qy²) dx
and
J[y] = [[", ry² dx.
Explain briefly how to use this to obtain estimates of the smallest eigenvalue >1.
1
(c) Let k > be a parameter. Explain why the functions y(x) = (1-x²) are suitable
4
trial functions for estimating the smallest eigenvalue. Show that the value of A[y]
for these trial functions is
4k2
A[y] =
=
4k - 1'
and use this to estimate the smallest eigenvalue \1.
Hint:
L₁ x²(1 − ²)³¹ dr =
1
(1 - x²)³ dx
(ẞ > 0).
2ẞ
You recieve a case of fresh Michigan cherries that weighs 8.2 kg. You will be making cherry pies. Each pie will require 1 3/4 pounds of pitted cherries. How many pies can be made from the case if the yield percent for cherries is 87
Chapter 18 Solutions
Mathematics for Machine Technology
Ch. 18 - Use a decimal equivalents table to find the...Ch. 18 - Compute (27.52.5+4.36)21.75 . Express the result...Ch. 18 - A cylinder has a volume, V, of 32.85 mm3. Use the...Ch. 18 - The volume V of a cube is V=s3 , where s is the...Ch. 18 - Multiply 15.328.75 .Ch. 18 - Express the decimal fraction 0.4275 as a common...Ch. 18 - Prob. 7ACh. 18 - Express the following ratios in lowest fractional...Ch. 18 - Prob. 9ACh. 18 - Express the following ratios in lowest fractional...
Ch. 18 - Prob. 11ACh. 18 - Prob. 12ACh. 18 - Prob. 13ACh. 18 - Express the following ratios in lowest fractional...Ch. 18 - Prob. 15ACh. 18 - Express the following ratios in lowest fractional...Ch. 18 - Prob. 17ACh. 18 - Prob. 18ACh. 18 - Prob. 19ACh. 18 - In Figure 18-8, gear A is turning at 120...Ch. 18 - Solve for the unknown value in each of the...Ch. 18 - Solve for the unknown value in each of the...Ch. 18 - Prob. 23ACh. 18 - Prob. 24ACh. 18 - Prob. 25ACh. 18 - Prob. 26ACh. 18 - Prob. 27ACh. 18 - Solve for the unknown value in each of the...Ch. 18 - Solve for the unknown value in each of the...Ch. 18 - Prob. 30ACh. 18 - Prob. 31ACh. 18 - Prob. 32ACh. 18 - Prob. 33ACh. 18 - Prob. 34ACh. 18 - Prob. 35ACh. 18 - Prob. 36ACh. 18 - Prob. 37ACh. 18 - Prob. 38ACh. 18 - Prob. 39ACh. 18 - Prob. 40ACh. 18 - Prob. 41ACh. 18 - Prob. 42ACh. 18 - Prob. 43ACh. 18 - Prob. 44ACh. 18 - Prob. 45ACh. 18 - Prob. 46ACh. 18 - Prob. 47ACh. 18 - A drawing has a scale of 14=3 . Determine the...
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