In order for gravel roads to have proper drainage, the highest point on the road (the crown) should slope downward on either side to the shoulders of the road. EPA guidelines for maintaining gravel roads with a low volume of traffic suggest that a 20 -ft wide road should have a centerline crown that is 5 to 7 in. high a. To the nearest tenth of a degree, find the angle of depression for a 5 -in. centerline crown. b. To the nearest tenth of a degree, find the angle of depression for a 7 -in. centerline crown.
In order for gravel roads to have proper drainage, the highest point on the road (the crown) should slope downward on either side to the shoulders of the road. EPA guidelines for maintaining gravel roads with a low volume of traffic suggest that a 20 -ft wide road should have a centerline crown that is 5 to 7 in. high a. To the nearest tenth of a degree, find the angle of depression for a 5 -in. centerline crown. b. To the nearest tenth of a degree, find the angle of depression for a 7 -in. centerline crown.
Solution Summary: The author calculates the angle of depression for a 5in centerline crown, to the nearest tenth.
In order for gravel roads to have proper drainage, the highest point on the road (the crown) should slope downward on either side to the shoulders of the road. EPA guidelines for maintaining gravel roads with a low volume of traffic suggest that a
20
-ft
wide road should have a centerline crown that is
5
to
7
in. high
a. To the nearest tenth of a degree, find the angle of depression for a
5
-in. centerline crown.
b. To the nearest tenth of a degree, find the angle of depression for a
7
-in. centerline crown.
Use the information to find and compare Δy and dy. (Round your answers to four decimal places.)
y = x4 + 7 x = −3 Δx = dx = 0.01
Δy =
dy =
4. A car travels in a straight line for one hour. Its velocity, v, in miles per hour at six minute intervals is shown
in the table. For each problem, approximate the distance the car traveled (in miles) using the given method,
on the provided interval, and with the given number of rectangles or trapezoids, n.
Time (min) 0 6 12 18|24|30|36|42|48|54|60
Speed (mph) 0 10 20 40 60 50 40 30 40 40 65
a.) Left Rectangles, [0, 30] n=5
b.) Right Rectangles, [24, 42] n=3
c.) Midpoint Rectangles, [24, 60] n=3
d.) Trapezoids, [0, 24] n=4
The bracket BCD is hinged at C and attached to a control cable at B. Let F₁ = 275 N and F2 = 275 N.
F1
B
a=0.18 m
C
A
0.4 m
-0.4 m-
0.24 m
Determine the reaction at C.
The reaction at C
N Z
F2
D
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.