Idaho Society of Professional Engineers

           PO Box 170239, Boise, ID 83717-0239  208-426-0636  Fax: 208-426-0639  E-Mail: ispe@idahospe.org

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Idaho Society of Professional Engineers
Friday Update – 09/12/08

UPCOMING EVENTS:

NSPE FALL EDUCATION SEMINARS
Develop and hone your professional skills—without leaving your desk—by participating in one of NSPE's upcoming Web seminars. Set aside 90 minutes in your workday to gain insight into today's hottest topics from the field's most knowledgeable leaders.

Slips, Trips, & Falls Part I
September 17, 1:30–3:00 p.m. (Eastern)
Presented by Professional Engineers in Construction
In Part I of "Slips, Trips, and Falls: From an Engineering and Legal Perspective" participants will develop an understanding of the why slips and falls occur and the most common causes behind them. Moreover, they will learn about injury statistics and trends as well as gravity, friction, and ergonomics. This Web seminar will also examine the requirements and codes set forth by the various governing agencies that help to keep us safe including state "premises liability" laws and standards of reasonable care and analyze different types of surfaces that most commonly cause slips, trips, and falls in residential and commercial settings including walks and ramps, stairs, floor, wall openings, and holes.

“Issue Coverage Tracker”. Washington Post. http://projects.washingtonpost.com/2008-presidential-candidates September 4, 2008.

According to the table, what percent of the total number of “mentions” between the two candidates have related to education? Express your answer to the nearest tenth.
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Which candidate has devoted a higher percentage of their issue “mentions” to the issue of health care?
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What is the positive difference in the percent of total “mentions” devoted to the Iraq War and total “mentions” devoted to the Economy/Budget? Express your answer to the nearest tenth.

Answer to the last MATHCOUNTS problem:
His time in the 100m race was 9.69 seconds. If he had run the 200m race at the same speed, it would have taken him twice as long, which is 9.69 x 2 = 19.38 seconds. Because he ran the 200m in less time, his average speed was actually greater in the 200m race.
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His speed for 100m was (100 m/9.69 sec) * (1 mi/1609.344 m) * (3600 sec/hr) = 23.08 mi/hr, and his speed for 200m was (200 m/19.30 sec) * (1 mi/1609.344 m) * (3600 sec/hr) = 23.18 mi/hr.
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Running at his 100m-race rate, Usain would run a mile in (9.69 sec/100 m)(1609.344 m/1 mi) = 155.945 seconds. Running at this 200m-race rate, Usain would run a mile in (19.30 sec/200 m)(1609.344 m/1 mi) = 155.302. Now we can find the difference.


155.945 – 155.302 = 0.6 seconds, to the nearest tenth.
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*** Answers will vary, but middle school student track-and-field athletes can run 100m in about 13 seconds and 200m in about 27 seconds. Those are average speeds of 17.21 mi/hr and 16.57 mi/hr, respectively.

If you want to see last week's problem again, click http://mathcounts.org/NETCOMMUNITY/Page.aspx?pid=1350&srcid=1227


Idaho Society of Professional Engineers
PO Box 170239
Boise, ID 83717-0239
208-426-0636
Fax: 208-426-0639
E-Mail: ispe@idahospe.org
Web Site: www.Idahospe.org 





 

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Last modified: 03/27/15