EBK COMPUTER SYSTEMS
3rd Edition
ISBN: 8220101459107
Author: O'HALLARON
Publisher: YUZU
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Chapter 1.9, Problem 1.1PP
Practice Problem 1.1 (solution page 28)
Suppose you work as a truck driver, and you have been hired to carry a load of potatoes from Boise, Idaho, to Minneapolis, Minnesota, a total distance of 2,500 kilometers. You estimate you can average 100 km/hr driving within the speed limits, requiring a total of 25 hours for the trip.
- A. You hear on the news that Montana has just abolished its speed limit, which constitutes 1,500 km of, the trip. Your truck can travel at 150 km/hr. What will be your speedup for the trip?
- B. You can buy a new turbocharger for your truck at www.fasttrucks.com. They stock a variety of models, but the faster you want to go, the more it will cost. How fast must you travel through Montana to get an overall speedup for your trip 1.67×?
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Practice Problems (5)
1) Write a program to make a table of the physical properties for water in the range of
temperatures from 273 to 323 K.
The Density :
The conductivity: K= 0.34 + 9.278 * 10* T
The Specific heat: Cp= 0.015539 (T – 308.2)² + 4180.9
p= 1200.92 – 1.0056 T + 0.001084 T
[STRENGTH OF MATERIALS (10.9)]
Please provide a solution to the problem. The answer is already given just provide a solution. Thank you!
ANSWER: bending is limiting, and gives an allowable superimposed load of 45 kN/m; required welds 0.26 cm throat thickness.
3. A bacteria culture grows at a rate proportional to its size. After 2 hours, the bacteria count was 400 and after 6 hours, the bacteria count was 20,000.
(a) Solve a system of equations to find k and yo for y Yoekt. (Note: it will help to assume = k is real in the symbols command).
(b) Use this to determine when the bacteria count reaches 2,000,000 (exact and approximate).
(c) Suppose 400 was the "initial" amount and 20,000 was the count after 4 hours. Find k and the amount of bacteria 2 hours BEFORE the "initial" time. In a print statement, explain what you notice when comparing these answers to part (a).from sympy import *from sympy.plotting import (plot,plot_parametric)import mathPlease answer in python and the stuff above as already been entered into the code.
Chapter 1 Solutions
EBK COMPUTER SYSTEMS
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