Numerical Methods For Engineers, 7 Ed
7th Edition
ISBN: 9789352602131
Author: Canale Chapra
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 12, Problem 26P
Electrical Engineering
An electrical engineer supervises the production of three types of electrical components. Three kinds of material-metal, plastic, and rubber-are required for production. The amounts needed to produce each component are
| Component | Metal, g/component |
Plastic, g/component |
Rubber, g/component |
| 1 | 15 | 0.30 | 1.0 |
| 2 | 17 | 0.40 | .2 |
| 3 | 19 | 0.55 | 1.5 |
If totals of 3.89, 0.095, and 0.282 kg of metal, plastic, and rubber, respectively, are available each day, how many components can be produced per day?
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Suppose that a room containing 1300 cubic feet of air is originally free of carbon monoxide (CO). Beginning
at time t = 0, cigarette smoke containing 4% CO is introduced into the room at a rate of 0.8 cubic feet per
minute. The well-circulated smoke and air mixture is allowed to leave the room at the same rate.
Let A(t) represent the amount of CO in the room (in cubic feet) after t minutes.
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dA
dt
A(0)
(B) Solve the IVP to find the amount of CO in the room at any time t > 0.
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at which this concentration is reached.
t=
minutes
Chapter 12 Solutions
Numerical Methods For Engineers, 7 Ed
Ch. 12 - Chemical/Bio Engineering
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