A First Course in Differential Equations with Modeling Applications (MindTap Course List)
11th Edition
ISBN: 9781305965720
Author: Dennis G. Zill
Publisher: Cengage Learning
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Textbook Question
Chapter 7.1, Problem 12E
In Problems 1–18 use Definition 7.1.1 to find
12. f(t) = e−2t−5
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#18) Find the indicated derivative for each function
Example 35.
3
y = (x + Væ)'
For f(x) and g(x) given in Problems 35–38, find
(a) (f + g)(x)
(b) (f – g)(x)
(c) (f'g)(x)
(d) (f/g)(x)
35. f(x) = 3x g(x) = x'
36. f(x) = Vx g(x) = 1/x
37. f(x) = V2x g(x) = x²
38. f(x) = (x – 1)? g(x) = 1 – 2x
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For f(x) and g(x) given in Problems 39–42, find
(a) (fº g)(x)
(b) (g •f)(x)
(c) ƒ(f(x))
(d) f(x) = (f·f)(x)
39. f(x) = (x – 1)³ g(x) = 1 – 2x
40. f(x) = 3x g(x) = x' – 1
41. f(x) = 2Vx g(x) = x* + 5
%3D
%3D
1
42. f(x) = g(x) = 4x + 1
Chapter 7 Solutions
A First Course in Differential Equations with Modeling Applications (MindTap Course List)
Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1–18 use Definition 7.1.1 to find .
6....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....
Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 118 use Definition 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - Prob. 22ECh. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - Prob. 28ECh. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 1936 use Theorem 7.1.1 to find f(t)....Ch. 7.1 - In Problems 3740 find f(t) by first using a...Ch. 7.1 - Prob. 38ECh. 7.1 - In Problems 3740 find f(t) by first using a...Ch. 7.1 - Prob. 40ECh. 7.1 - We have encountered the gamma function () in our...Ch. 7.1 - Prob. 42ECh. 7.1 - In Problems 4346 use Problems 41 and 42 and the...Ch. 7.1 - Prob. 44ECh. 7.1 - In Problems 4346 use Problems 41 and 42 and the...Ch. 7.1 - Prob. 46ECh. 7.1 - Suppose that if {f1(t)} = F1(s) for s c1 and that...Ch. 7.1 - Figure 7.1.4 suggests, but does not prove, that...Ch. 7.1 - Discussion Problems Use part (c) of Theorem 7.1.1...Ch. 7.1 - Under what conditions is a linear function f(x) =...Ch. 7.1 - Explain why the function f(t)={t,0t24,2t51/(t5),t5...Ch. 7.1 - Show that the function f(t)=1/t2 does not possess...Ch. 7.1 - The function f(t)=2tet2cost2 is not of exponential...Ch. 7.1 - If L{f(t)}=F(s) and a 0 is a constant, show that...Ch. 7.1 - Prob. 55ECh. 7.1 - Prob. 56ECh. 7.1 - Prob. 57ECh. 7.1 - In Problems 5558 use the given Laplace transform...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 130 use appropriate algebra and...Ch. 7.2 - In Problems 3134 find the given inverse Laplace...Ch. 7.2 - In Problems 3134 find the given inverse Laplace...Ch. 7.2 - In Problems 3134 find the given inverse Laplace...Ch. 7.2 - In Problems 3134 find the given inverse Laplace...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - In Problems 3544 use the Laplace transform to...Ch. 7.2 - The inverse forms of the results in Problem 49 in...Ch. 7.2 - The inverse forms of the results in Problem 49 in...Ch. 7.2 - In Problems 47 and 48 use one of the inverse...Ch. 7.2 - Prob. 48ECh. 7.2 - (a)With a slight change in notation the transform...Ch. 7.2 - Make up two functions f1 and f2 that have the same...Ch. 7.2 - Prob. 51ECh. 7.2 - Suppose f(t) is a function for which f (t) is...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - Find either F(s) or f (t), as indicated. {e2t(t ...Ch. 7.3 - Find either F(s) or f (t), as indicated. {et sin...Ch. 7.3 - Prob. 8ECh. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 120 find either F(s) or f(t), as...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 2130 use the Laplace transform to...Ch. 7.3 - In Problems 31 and 32 use the Laplace transform...Ch. 7.3 - In Problems 31 and 32 use the Laplace transform...Ch. 7.3 - A 4-pound weight stretches a spring 2 feet. The...Ch. 7.3 - Recall that the differential equation for the...Ch. 7.3 - Consider a battery of constant voltage E0 that...Ch. 7.3 - Use the Laplace transform to find the charge q(t)...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 3748 find either F(s) or f(t), as...Ch. 7.3 - In Problems 4954 match the given graph with one of...Ch. 7.3 - In Problems 4954 match the given graph with one of...Ch. 7.3 - In Problems 4954 match the given graph with one of...Ch. 7.3 - In Problems 4954 match the given graph with one of...Ch. 7.3 - In Problems 4954 match the given graph with one of...Ch. 7.3 - In Problems 4954 match the given graph with one of...Ch. 7.3 - In Problems 5562 write each function in terms of...Ch. 7.3 - In Problems 5562 write each function in terms of...Ch. 7.3 - In Problems 5562 write each function in terms of...Ch. 7.3 - In Problems 5562 write each function in terms of...Ch. 7.3 - In Problems 5562 write each function in terms of...Ch. 7.3 - In Problems 5562 write each function in terms of...Ch. 7.3 - In Problems 5562 write each function in terms of...Ch. 7.3 - Prob. 62ECh. 7.3 - In Problems 6370 use the Laplace transform to...Ch. 7.3 - use the Laplace transform to solve the given...Ch. 7.3 - Prob. 65ECh. 7.3 - y + 4y = f(t), y(0) = 0, y(0) = 1, where...Ch. 7.3 - y + 4y = sin t U(t 2), y(0) = 1, y(0) = 0Ch. 7.3 - use the Laplace transform to solve the given...Ch. 7.3 - y + y = f(t), y(0) = 0, y(0) = 1, where...Ch. 7.3 - y+4y+3y=1U(t2)U(t4)+U(t6), y(0) = 0, y(0) = 0Ch. 7.3 - Suppose a 32-pound weight stretches a spring 2...Ch. 7.3 - Solve Problem 71 if the impressed force f(t) = sin...Ch. 7.3 - In Problems 73 and 74 use the Laplace transform to...Ch. 7.3 - In Problems 73 and 74 use the Laplace transform to...Ch. 7.3 - (a) Use the Laplace transform to find the current...Ch. 7.3 - (a) Use the Laplace transform to find the charge...Ch. 7.3 - A cantilever beam is embedded at its left end and...Ch. 7.3 - Solve Problem 77 when the load is given by...Ch. 7.3 - Find the deflection y(x) of a cantilever beam...Ch. 7.3 - A beam is embedded at its left end and simply...Ch. 7.3 - Discuss how you would fix up each of the following...Ch. 7.3 - Prob. 83ECh. 7.4 - In Problems 18 use Theorem 7.4.1 to evaluate the...Ch. 7.4 - Prob. 2ECh. 7.4 - In Problems 18 use Theorem 7.4.1 to evaluate the...Ch. 7.4 - In Problems 18 use Theorem 7.4.1 to evaluate the...Ch. 7.4 - In Problems 18 use Theorem 7.4.1 to evaluate the...Ch. 7.4 - In Problems 18 use Theorem 7.4.1 to evaluate the...Ch. 7.4 - In Problems 18 use Theorem 7.4.1 to evaluate the...Ch. 7.4 - In Problems 18 use Theorem 7.4.1 to evaluate the...Ch. 7.4 - In Problems 914 use the Laplace transform to solve...Ch. 7.4 - In Problems 914 use the Laplace transform to solve...Ch. 7.4 - In Problems 914 use the Laplace transform to solve...Ch. 7.4 - In Problems 914 use the Laplace transform to solve...Ch. 7.4 - In Problems 914 use the Laplace transform to solve...Ch. 7.4 - In Problems 914 use the Laplace transform to solve...Ch. 7.4 - In Problems 15 and 16 use a graphing utility to...Ch. 7.4 - In Problems 15 and 16 use a graphing utility to...Ch. 7.4 - In some instances the Laplace transform can be...Ch. 7.4 - In some instances the Laplace transform can be...Ch. 7.4 - In Problems 1922 proceed as in Example 3 and find...Ch. 7.4 - In Problems 1922 proceed as in Example 3 and find...Ch. 7.4 - In Problems 1922 proceed as in Example 3 and find...Ch. 7.4 - In Problems 1922 proceed as in Example 3 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 2334 proceed as in Example 4 and find...Ch. 7.4 - In Problems 3538 use (8) to evaluate the given...Ch. 7.4 - In Problems 3538 use (8) to evaluate the given...Ch. 7.4 - In Problems 3538 use (8) to evaluate the given...Ch. 7.4 - In Problems 3538 use (8) to evaluate the given...Ch. 7.4 - Use the Laplace transform and the results of...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 4150 use the Laplace transform to...Ch. 7.4 - In Problems 51 and 52 solve equation (10) subject...Ch. 7.4 - In Problems 51 and 52 solve equation (10) subject...Ch. 7.4 - In Problems 5358 use Theorem 7.4.3 to find the...Ch. 7.4 - In Problems 5358 use Theorem 7.4.3 to find the...Ch. 7.4 - In Problems 5358 use Theorem 7.4.3 to find the...Ch. 7.4 - In Problems 5358 use Theorem 7.4.3 to find the...Ch. 7.4 - In Problems 5358 use Theorem 7.4.3 to find the...Ch. 7.4 - In Problems 5358 use Theorem 7.4.3 to find the...Ch. 7.4 - In Problems 59 and 60 solve equation (15) subject...Ch. 7.4 - In Problems 59 and 60 solve equation (15) subject...Ch. 7.4 - In Problems 61 and 62 solve the model for a driven...Ch. 7.4 - In Problems 61 and 62 solve the model for a driven...Ch. 7.4 - Discuss how Theorem 7.4.1 can be used to find...Ch. 7.4 - In Section 6.4 we saw that ty + y + ty = 0 is...Ch. 7.4 - (a)Laguerres differential equation ty+(1t)y+ny=0...Ch. 7.4 - The Laplace transform L{et2} exists, but without...Ch. 7.4 - Solve the integral equation f(t)=et+et0tef()d.Ch. 7.4 - (a) Show that the square wave function E(t) given...Ch. 7.4 - Use the Laplace transform as an aide in evaluating...Ch. 7.4 - Prob. 70ECh. 7.4 - Prob. 71ECh. 7.4 - Appropriately modify the procedure of Problem 72...Ch. 7.4 - The charge q(t) on a capacitor in an LC-series...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - Prob. 10ECh. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 112 use the Laplace transform to solve...Ch. 7.5 - In Problems 13 and 14 use the Laplace transform to...Ch. 7.5 - In Problems 13 and 14 use the Laplace transform to...Ch. 7.5 - In Problems 15 and 16 a uniform beam of length L...Ch. 7.5 - In Problems 15 and 16 a uniform beam of length L...Ch. 7.5 - Someone tells you that the solutions of the two...Ch. 7.5 - Reread (i) in the Remarks at the end of this...Ch. 7.6 - In Problems 112 use the Laplace transform to solve...Ch. 7.6 - In Problems 112 use the Laplace transform to solve...Ch. 7.6 - Prob. 3ECh. 7.6 - Prob. 4ECh. 7.6 - In Problems 112 use the Laplace transform to solve...Ch. 7.6 - Prob. 6ECh. 7.6 - d2xdt2+xy=0d2ydt2+yx=0 x(0) = 0, x(0) = 2, y(0) =...Ch. 7.6 - Prob. 8ECh. 7.6 - Prob. 9ECh. 7.6 - Prob. 10ECh. 7.6 - Prob. 11ECh. 7.6 - In Problems 112 use the Laplace transform to solve...Ch. 7.6 - Prob. 13ECh. 7.6 - Derive the system of differential equations...Ch. 7.6 - (a) Show that the system of differential equations...Ch. 7.6 - (a) In Problem 12 in Exercises 3.3 you were asked...Ch. 7.6 - Prob. 17ECh. 7.6 - Prob. 18ECh. 7.6 - Prob. 19ECh. 7.6 - (a) Show that the system of differential equations...Ch. 7 - In Problems 1 and 2 use the definition of the...Ch. 7 - In Problems 1 and 2 use the definition of the...Ch. 7 - Prob. 3RECh. 7 - Prob. 4RECh. 7 - In Problems 324 fill in the blanks or answer true...Ch. 7 - Prob. 6RECh. 7 - Prob. 7RECh. 7 - Prob. 8RECh. 7 - Prob. 9RECh. 7 - Prob. 10RECh. 7 - Prob. 11RECh. 7 - Prob. 12RECh. 7 - Prob. 13RECh. 7 - Prob. 14RECh. 7 - Prob. 15RECh. 7 - Prob. 16RECh. 7 - Prob. 17RECh. 7 - Prob. 18RECh. 7 - Prob. 19RECh. 7 - Prob. 20RECh. 7 - Prob. 21RECh. 7 - Prob. 22RECh. 7 - Prob. 23RECh. 7 - Prob. 24RECh. 7 - In Problems 25–28 use the unit step function to...Ch. 7 - In Problems 2528 use the unit step function to...Ch. 7 - Prob. 27RECh. 7 - Prob. 28RECh. 7 - In Problems 29–32 express f in terms of unit step...Ch. 7 - Prob. 30RECh. 7 - Prob. 31RECh. 7 - In Problems 2932 express f in terms of unit step...Ch. 7 - Prob. 33RECh. 7 - Prob. 34RECh. 7 - Prob. 35RECh. 7 - In Problems 3542 use the Laplace transform to...Ch. 7 - Prob. 37RECh. 7 - In Problems 3542 use the Laplace transform to...Ch. 7 - y + 2y = f(t), y(0) = 1, where f(t) is given in...Ch. 7 - Prob. 40RECh. 7 - Prob. 41RECh. 7 - In Problems 3542 use the Laplace transform to...Ch. 7 - Prob. 43RECh. 7 - Prob. 44RECh. 7 - The current i(t) in an RC-series circuit can be...Ch. 7 - A series circuit contains an inductor, a resistor,...Ch. 7 - A uniform cantilever beam of length L is embedded...Ch. 7 - When a uniform beam is supported by an elastic...Ch. 7 - Suppose two identical pendulums are coupled by...Ch. 7 - Coulomb Friction Revlslted In Problem 27 in...Ch. 7 - Range of a ProjectileNo Air Resistance (a) A...
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