Elementary Differential Equations and Boundary Value Problems, 11e WileyPLUS Registration Card + Loose-leaf Print Companion
11th Edition
ISBN: 9781119336617
Author: William E. Boyce, Richard C. DiPrima
Publisher: Wiley (WileyPLUS Products)
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Question
Chapter 1.2, Problem 10P
(a)
To determine
The decay rate r from given data.
(b)
To determine
To find: The expression for the amount of thorium-234 present at any time t.
(c)
To determine
To find: The time required for the thorium-234 to decay to one-half its original amount.
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☐
Part 1:
A linear electrical load draws 1₁ A at a 0.72 lagging power factor. See the table to find ½ for your
student ID. When a capacitor is connected, the line current dropped to 122 A and the power factor
improved to 0.98 lagging. Supply frequency is 50 Hz.
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manipulation. Compare the results.
c. Express the waveforms of the source current before (į (t)) and after (i2(t)) introduction of the
capacitor in the form Im sin(2лft + 0). Hand sketch them on the same graph. Clearly label your
plots.
d. Analytically solve i̟2(t) − i₁ (t) using the theories of trigonometry to obtain the capacitor current
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Chapter 1 Solutions
Elementary Differential Equations and Boundary Value Problems, 11e WileyPLUS Registration Card + Loose-leaf Print Companion
Ch. 1.1 - Prob. 1PCh. 1.1 - Prob. 2PCh. 1.1 - Prob. 3PCh. 1.1 - Prob. 4PCh. 1.1 - Prob. 5PCh. 1.1 - Prob. 6PCh. 1.1 - Prob. 7PCh. 1.1 - Prob. 8PCh. 1.1 - Prob. 9PCh. 1.1 - Prob. 10P
Ch. 1.1 - Prob. 11PCh. 1.1 - Prob. 12PCh. 1.1 - Prob. 13PCh. 1.1 - Prob. 14PCh. 1.1 - Prob. 15PCh. 1.1 - Prob. 16PCh. 1.1 - A pond initially contains 1,000,000 gal of water...Ch. 1.1 - Prob. 18PCh. 1.1 - Newtons law of cooling states that the temperature...Ch. 1.1 - Prob. 20PCh. 1.1 - Prob. 21PCh. 1.1 - Prob. 22PCh. 1.1 - Prob. 23PCh. 1.1 - Prob. 24PCh. 1.1 - In each of Problems 22 through 25, draw a...Ch. 1.2 - Prob. 1PCh. 1.2 - Prob. 2PCh. 1.2 - Prob. 3PCh. 1.2 - Prob. 4PCh. 1.2 - Undetermined Coefficients. Here is an alternative...Ch. 1.2 - Use the method of Problem 5 to solve the...Ch. 1.2 - Prob. 7PCh. 1.2 - Prob. 8PCh. 1.2 - Consider the falling object of mass 10 kg in...Ch. 1.2 - Prob. 10PCh. 1.2 - Prob. 11PCh. 1.2 - According to Newton’s law of cooling (see Problem...Ch. 1.2 - Prob. 13PCh. 1.2 - Prob. 14PCh. 1.3 - Prob. 1PCh. 1.3 - Prob. 2PCh. 1.3 - Prob. 3PCh. 1.3 - Prob. 4PCh. 1.3 - Prob. 5PCh. 1.3 - Prob. 6PCh. 1.3 - Prob. 7PCh. 1.3 - Prob. 8PCh. 1.3 - Prob. 9PCh. 1.3 - Prob. 10PCh. 1.3 - Prob. 11PCh. 1.3 - Prob. 12PCh. 1.3 - Prob. 13PCh. 1.3 - Prob. 14PCh. 1.3 - Prob. 15PCh. 1.3 - Prob. 16PCh. 1.3 - Prob. 17PCh. 1.3 - Prob. 18PCh. 1.3 - Prob. 19PCh. 1.3 - Prob. 20PCh. 1.3 - Prob. 21PCh. 1.3 - Prob. 23PCh. 1.3 - Prob. 24P
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