11 articles trouvés pour ce sujet.
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A road around a garden |
2015-01-25 |
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hahha pose la question :
a garden 150 m long and 80 m wide has a road 4 m wide all around on the out side find the cost of paving at the rate of 12 per s.q m
Penny Nom lui répond. |
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The grade of a road as a percent |
2014-02-14 |
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Emily pose la question :
What is the grade of the road shown below expressed as a percent rounded to one decimal place?
Rise is 40feet
Run is 380 feet
Penny Nom lui répond. |
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A railroad embankment |
2013-01-22 |
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clint pose la question :
the pennsylvania railroad found it necessary,owing to land slides upon the roadbed,to reduce the angle of inclination of one bank of certain railway cut near pittsburgh,pa.,from an original angle of 45 degrees to a new angle of 30 degrees. the bank as it originally stood was 200 ft.long and had a slant length of 60 ft.. find the amount of the earth removed, if the top level of the bank remained unchanged.
Penny Nom lui répond. |
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The tonnage of some gravel |
2010-07-22 |
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Gregory pose la question :
i have a road that is 8 miles long 20 feet wide and 4 inches deep what is the tonnage for gravel i would need
Penny Nom lui répond. |
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The angle at which the road is inclined |
2010-02-10 |
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abeth pose la question :
a mountain road drops 5 m for every 22 m of road. Calculate the angle at which the road is inclined to the horizontal to the nearest degree.
Penny Nom lui répond. |
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How many miles of track? |
2008-08-27 |
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Stephanie pose la question :
I have a 50 ac tract of Railroad I need to know approx how many miles of tr=
ack would be included in 50 ac
Penny Nom lui répond. |
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Chord, radius, arc length and central angle |
2008-04-15 |
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Cindy pose la question :
There is a railroad curve with a chord length of 2000 ft. and a central angle of 35 degrees. What is the radius and arc length of the circular arc?
Stephen La Rocque lui répond. |
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The grade of a shoulder |
2007-04-28 |
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Robert pose la question :
I am building a road with a 1.2 meter shoulder. The plan calls fo a 6% shoulder grade. When I use my metric calculator I come up with a different answer when I multiply 3/4 of an inch by 1.2 meters and when I multiply 1.2 meters by .06%?
Penny Nom lui répond. |
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A roadway over a river |
2007-03-12 |
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Taranjeet pose la question :
My teacher has given us bridge with only one measurement. From the river to the roadway is 50 metres in length (vertically) The question he wants us to find out is. What is the distance between the vertical supports. He has said that: At a horizontal distance of 'x' metres from the foot of the arch the height of the arch, the height of the arch above the river 'h' metres is given by: h=-1/40(x squared) = 3x I don't understand how to find the distance between the support beams. Thank you
Penny Nom lui répond. |
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The coefficient of thermal expansion for steel |
2005-10-14 |
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Jim pose la question :
Is the following statement true?
“The coefficient of thermal expansion for steel is 0.00000645in/in/deg. Doesn't sound like much but when you run out the numbers it comes to .405504 ft/mile/deg. Still doesn't sound like much, only about 5". Then multiply by 40 degrees and you get a piece of rail that has grown by 16.22 feet in that one mile. It's not at all unusual for the rail temp to go from say, 40 deg to 80 deg on a spring or fall day. Remember that on a sunny day, the rail temp can be significantly higher than the air temp as well."
I ran the math and came up with an answer closer to 16 inches, instead of 16 feet. Which is closer to being correct?
Penny Nom lui répond. |
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The incline of a road |
2003-08-03 |
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A driver pose la question :
incline- % grade as to degree. ie 6% hwy grade= what degree of incline?
Penny Nom lui répond. |
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