the tunnel shown here. The tunnel is 400 ft long and 60 ft wide at the base. The crossed section is shaped like one arch of the curve y = 30 cos(). Upon completion, the TX 60 tunnel's inside surface (excluding the roadway) will be treated with a waterproof sealer that costs $1.75 per square foot to

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter47: Applications Of Formulas To Cutting Speed, Revolutions Per Minute, And Cutting Time
Section: Chapter Questions
Problem 44A: Compute the following problems. Express the answers to 1 decimal place. Use: T=LFN Seven brass...
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3. Your newly formed engineering firm is
competing bidding for a contract to construct
the tunnel shown here. The tunnel is 400 ft
long and 60 ft wide at the base. The crossed-
section is shaped like one arch of the curve
y = 30 cos (). Upon completion, the
60
tunnel's inside surface (excluding the
roadway) will be treated with a waterproof
sealer that costs $1.75 per square foot to
apply. How much will it cost to apply the
sealer? Use Simpson's Rule to find the length
of the cosine curve with less than 0.001 error.
Show how you determine the number of
intervals, n, you decide to use.
y
y = 30 cos (77X/60)
- 30
400 it
30
x (ft)
NOT TO SCALE
Transcribed Image Text:3. Your newly formed engineering firm is competing bidding for a contract to construct the tunnel shown here. The tunnel is 400 ft long and 60 ft wide at the base. The crossed- section is shaped like one arch of the curve y = 30 cos (). Upon completion, the 60 tunnel's inside surface (excluding the roadway) will be treated with a waterproof sealer that costs $1.75 per square foot to apply. How much will it cost to apply the sealer? Use Simpson's Rule to find the length of the cosine curve with less than 0.001 error. Show how you determine the number of intervals, n, you decide to use. y y = 30 cos (77X/60) - 30 400 it 30 x (ft) NOT TO SCALE
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