3.4 Calculate the indicators of the completeness and quality of ore extraction, using the following data. These data were obtained by stoping and surveying measurements during the extraction of ore reserves in a producing block: the commercially viable reserves in the block (B) = 3300 thousand tons; the ore mined from the block at the end of stoping (D) = 2990.8 thousand tons; the actual total loss of ore in the block (P) = 350.3 thousand tons; the diluting rock mass (B) = 40.3 thousand tons; the average of the ore in commercial reserves in the block (c) = 48.3%; the average grade of produced ore in the block (a) = 46.9%; the average grade of ore mixed with dradge rock in the block (b) = 0% %3D %3D %3D

3.4 Calculate the indicators of the completeness and quality of ore extraction, using the following data. These data were obtained by stoping and surveying measurements during the extraction of ore reserves in a producing block: the commercially viable reserves in the block (B) = 3300 thousand tons; the ore mined from the block at the end of stoping (D) = 2990.8 thousand tons; the actual total loss of ore in the block (P) = 350.3 thousand tons; the diluting rock mass (B) = 40.3 thousand tons; the average of the ore in commercial reserves in the block (c) = 48.3%; the average grade of produced ore in the block (a) = 46.9%; the average grade of ore mixed with dradge rock in the block (b) = 0% %3D %3D %3D

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

See similar textbooks

Similar questions

3. A 5.0 inches cube chiffon cake on a table was exposed to a shearing force of 0.20 lb. The upper surface was displaced by 0.80 inches. What is the Shear Modulus of the cake ( lb/in ^2)
The reducing balance method of depreciation devalues a capital item of plant at a faster rate, during the early years of the item, when compared to the straight line depreciation method. True O False
Based in the table 1. (need to answer question 4,5,6)1) Develop a best-fit equation for the relationship between stress and strain. Employ Naïve–Gauss elimination method whenever necessary.S=___28.65___+___294.43___e + ___235.22____e2 2) Determine the coefficient of determination for the equation. R2 =___0.636____ 3) Calculate the stress value to the most accurate value at strain value 0.53.s = ___250.76____Pa4) The yield point is the point on a stress–strain curve that indicates the limit of elastic behaviour and the beginning of plastic behavior. In this case, the yield point occurs at a stress value of 80. Determine the corresponding strain value at the yield point. In any relevant method, use a stopping criterion of 0.05% e =_______ 5) The ultimate strength is the maximum point on the stress–strain curve. This corresponds to the maximum stress that can be sustained by a structure in tension. Compute the ultimate strength point of the polymeric material (strain value that gives…
Salvage value is the life. value of asset when sold after the end of useful (a) Estimated (b) Fixed (c) Variable (d) Depreciation
Q2: A product from composite material which consists of an aluminum metal matrix reinforced by a 18% volume fraction of graphite fiber. Use the given properties of aluminum and graphite to determine: a. The density of the composite. b. The Mass fractions of the aluminum and graphite. ¢. The transverse Young’s modulus of the aluminum/ graphite composite. d. The axial Young’s modulus of the aluminum/ graphite composite. e. Compare the results of the transverse and axial Young’s modulus of the pure aluminum alloy with the results of the transverse and axial Young’s modulus of the composite found in 3 and 4 and give the improvement or reduction percentages. Given: Aluminum p,, = 0.0027g/mm3, E;,=E,=70GPa Graphite p=0.0018 g / mm’, E;;=220 GPa, E;;=20 GPa
Please show all your work neatly including finding the correct units. for : A% = 40+51, so A =91% for : P_LA=B hPa. B= 0+1012, so B = 1012 for : P_denver=C hPa. C=3+838, so C =841
An electric hot water heater consumes 3.1 kilowatts of electricity and converts it to heat. How long will it take the water heater to heat a 67 gallon tank of water from 10 degrees Celsius to 50 degrees Celsius? (1 kilogram of water is 0.37 gallons, 1 Calorie = 4200 J). It may be helpful to refer back to the weekly handout for guidance on this problem. Your final answer should be in minutes (rounded to the nearest 10 minutes).
Simple Machines-Levers, Inclined Planes, and Pulleys Directions: Use the appropriate equation to answer the following questions. All answers should be recorded below or in your Engineering Design journal. Remember to show all work. A lever has an effort arm that is 5 meters long and a resistance (load) arm that is 3.5 meters long. How much effort is needed to lift a 100 Newton weight? 5K i). Draw the figure representing the problem ii). How much effort is needed to lift a 100 Newton weight? iii). What is the Actual Mechanical Advantage 1. 5m i) AOON 5-5m
For problem solving question, use precision of 0.0000 in your partial solutions and final answers.
Four consumers are willing to pay these amounts for haircuts, and four haircutting businesses have these costs: Consumers' Willingness to Pay Firms' Costs Edison: $45 Firm A: $40 Kevin: $25 Firm B: $20 Maria: $15 Hilary: $35 Firm C: $10 Firm D: $30 Each firm has the capacity to produce only one haircut. For efficiency, should be given. Which businesses should cut hair? Check all that apply. Firm A Firm B Firm C Firm D Which consumers should have their hair cut? Check all that apply. Edison Hilary Kevin Maria The maximum possible total surplus is $
4) One measure of the scale of a process is its throughputs of fuel or other input raw materials, e.g., lbs of coal per hour. Compare the coal throughputs for a small-scale experiment that uses 10 mg of coal in 6 seconds, and a single boiler in a large commercial-scale central-station electric generating plant. Assume: the commercial facility has a total output of 1,020 MW e supplied by three boilers of equal capacity; the boiler has a heat rate of (8,980 Btu th /hr)/(kW e ) based on fuel HHV, and fires coal with a gross heating value (i.e., HHV) of 14,000 Btu th /lb.