The roof over a 9.0-m x 10.0-m room in a school has a total mass of 12900 kg. The roof is to be supported by vertical wooden "2 x 4s" (actually about 4.0 cm x 9.0 cm) equally spaced along the 10.0-m sides. Consider only compression, and assume a safety factor of 14. The compressive strength for the wood is 3.5 x 107 N/m2. Part A How many supports are required on each side? Express your answer as an integer. ? N = supports on each side Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B How far apart must they be? Express your answer to two significant figures and include the appropriate units. HÁ d = Value m Submit Previous Answers Request Answer

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
icon
Related questions
Question

Solve it correctly please. I 

Constants
The roof over a 9.0-m × 10.0-m room in a school
has a total mass of 12900 kg. The roof is to be
supported by vertical wooden "2 x 4s" (actually
about 4.0 cm x 9.0 cm) equally spaced along the
10.0-m sides. Consider only compression, and
assume a safety factor of 14. The compressive
strength for the wood is 3.5 x 107 N/m2.
Part A
How many supports are required on each side?
Express your answer as an integer.
?
N =
supports on each side
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 5 attempts remaining
Part B
How far apart must they be?
Express your answer to two significant figures and include the appropriate units.
HÁ
?
d =
Value
m
Submit
Previous Answers Request Answer
X Incorrect; Try Again; 5 attempts remaining
Transcribed Image Text:Constants The roof over a 9.0-m × 10.0-m room in a school has a total mass of 12900 kg. The roof is to be supported by vertical wooden "2 x 4s" (actually about 4.0 cm x 9.0 cm) equally spaced along the 10.0-m sides. Consider only compression, and assume a safety factor of 14. The compressive strength for the wood is 3.5 x 107 N/m2. Part A How many supports are required on each side? Express your answer as an integer. ? N = supports on each side Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B How far apart must they be? Express your answer to two significant figures and include the appropriate units. HÁ ? d = Value m Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Dimensional Analysis
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY