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A software company is considering translating its program into French. Each unit of the program sells for $50 and incurs a variable cost of $10 to produce
Premining shear stresses are nil relative to compass coordinates. How wide can this opening be made before failure occurs at a depth of 533 m?
g (as = aog, typically ao = 0.05 to 0.15, depends on seismic zone). Modify the safety factor expression from Problem 1 to include seismic load effect S.
Show by a direct resolution of force components and calculation of area that the normal stress (scc) on the plane in part (2) is the same
Explain the objective of rock mass classification schemes, RMR and Q, why RQD is important to such schemes
Calculate the discharge Q of a stream that has a velocity of 3 m/s, a width of 10 m, and a depth of 2 m.
In which stage (youth, maturity, or old age) in the evolution of a stream valley do each of the following occur?
What would happen to the sediment load of a stream if the velocity of the stream decreased considerably?
Find the liner thickness necessary to achieve a safety factor of 2.5. What outside shaft diameter is indicated?
Show that the center of mass of the boulder travels the same path even if it disintegrates into 1,001 pieces of various sizes and shapes.
Estimate the maximum subsidence; (3) critical width; and (4) trough width at the time mining extends to the critical area limit.
Which of the eight common elements is most abundant in the earth's crust, hydrosphere, and atmosphere?
id Florence's political and economic culture create the conditions that made it such a hotbed of brilliant art and science, or did the city's strong humanist.
The size of the earth was probably first calculated by Eratosthenes, a Greek living in Egypt, in 250 B.C. shows the elements he used in his calculation
What is the common spatial relationship of volcanic island arcs (such as the Aleutian Islands and the Philippine Islands), volcanic arcs on land
Your good friend has the opportunity to buy this riverside land in a beautiful canyon at good price. She wants to build a log cabin on the site.
What are probably the two most important mineral resources which must be conserved because of their necessity to life?
What thickness of cover rock is generally thought necessary to generate petroleum and natural gas from organic material?
What existed in the vicinity of the valley on the left side of before glaciation, and what is the evidence?
Does the article make the point the author intended, and why or why not?
What relationships between accumulation and ablation will cause a glacier to advance or retreat?
A general indicator of igneous rock composition is the color. Name the following igneous
Explain what happens as a mudstone becomes a schist during metamorphism
How do geologists know that mineral a changes to mineral B under certain pressures and temperatures ?