Mathematics For Machine Technology
8th Edition
ISBN: 9781337798310
Author: Peterson, John.
Publisher: Cengage Learning,
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Chapter 67, Problem 14A
For each exercise, functions of two angles are given. Which of the functions of the two angles is greater? Do not use a calculator.
sin 38°, sin 43°
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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.
a. Let the current drawn from the source before and after introduction of the capacitor be 1₁ and I₂
respectively. Take the source voltage as the reference and express 11 and 12 as vector
quantities in polar form.
b. Obtain the capacitor current, Ic = 12 − I₁, graphically as well as using complex number
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
in the form, ic(t) = Icm sin(2πft + 0c). Compare the result with the result in Part b.
Go to page 82 for the geometry problem. Use the formula for the area of a triangle to compute
the area given the base and height.
Link:
[https://drive.google.com/file/d/1RQ2OZK-LSxp RyejKEMg 1t2q15dbpVLCS/view?
usp=sharing]
Provide a step-by-step solution.
Chapter 67 Solutions
Mathematics For Machine Technology
Ch. 67 - If tan A=4.13792 , determine the value of angle A...Ch. 67 - Find the number of cubic inches of material...Ch. 67 - Find the number of cubic inches of material...Ch. 67 - The sector of a circle has an area of 231.3 sq in....Ch. 67 - Determine the arc length ABC if r=5.75in. and...Ch. 67 - Identify each of the following angles as acute....Ch. 67 - Refer to the following figure in answering...Ch. 67 - Refer to the following figure in answering...Ch. 67 - Refer to the following figure in answering...Ch. 67 - Refer to the following figure in answering...
Ch. 67 - Refer to the following figure in answering...Ch. 67 - Prob. 12ACh. 67 - Refer to the following figure in answering...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - For each exercise, functions of two angles are...Ch. 67 - Prob. 25ACh. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - Prob. 41ACh. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - For each function of an angle, write the...Ch. 67 - Prob. 45ACh. 67 - For each exercise, functions and cofunctions of...Ch. 67 - Prob. 47ACh. 67 - For each exercise, functions and cofunctions of...Ch. 67 - Prob. 49ACh. 67 - For each exercise, functions and cofunctions of...Ch. 67 - Prob. 51ACh. 67 - For each exercise, functions and cofunctions of...Ch. 67 - Prob. 53ACh. 67 - For each exercise, functions and cofunctions of...Ch. 67 - Prob. 55ACh. 67 - For each exercise, functions and cofunctions of...Ch. 67 - Prob. 57A
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