1. A sign is exposed to a 15 mph wind on a standard day. You may neglect the "legs" of the sign in all cases. Estimate the drag on the sign if (a) the sign is aligned lengthwise to the wind. (b) the sign is crosswise to the wind (wind perpendicular to the face of the sign). 3 m wind (part a) Tempe ASU Next Exit wind (part b) 1m 1m Configuration for part a. Configuration for part b. 1. (c) the sign is rotated by 90 degrees (so that it is 3 m high and 1 m wide) and the wind is parallel to the face of the sign. (d) the sign is rotated by 90 degrees (same orientation as in part c) and the sign is crosswise to the wind. 1m wind (part c) Tempe ASU 3 m Next Exit Configuration for part c.
1. A sign is exposed to a 15 mph wind on a standard day. You may neglect the "legs" of the sign in all cases. Estimate the drag on the sign if (a) the sign is aligned lengthwise to the wind. (b) the sign is crosswise to the wind (wind perpendicular to the face of the sign). 3 m wind (part a) Tempe ASU Next Exit wind (part b) 1m 1m Configuration for part a. Configuration for part b. 1. (c) the sign is rotated by 90 degrees (so that it is 3 m high and 1 m wide) and the wind is parallel to the face of the sign. (d) the sign is rotated by 90 degrees (same orientation as in part c) and the sign is crosswise to the wind. 1m wind (part c) Tempe ASU 3 m Next Exit Configuration for part c.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:1. A sign is exposed to a 15 mph wind on a standard day. You may neglect the "legs" of the sign in all cases.
Estimate the drag on the sign if
(a) the sign is aligned lengthwise to the wind.
(b) the sign is crosswise to the wind (wind perpendicular to the face of the sign).
3 m
wind (part a)
Tempe ASU
Next Exit
wind (part b)
1m
1m
Configuration for part a.
Configuration for part b.
1. (c) the sign is rotated by 90 degrees (so that it is 3 m high and 1 m wide) and the wind is parallel to the
face of the sign.
(d) the sign is rotated by 90 degrees (same orientation as in part c) and the sign is crosswise to the wind.
1m
wind (part c)
Tempe
ASU
3 m
Next
Exit
Configuration for part c.
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