With reference to Problem 1, if pillars are square and rooms (entries and crosscuts) are 45 ft
Question:
With reference to Problem 1, if pillars are square and rooms (entries and crosscuts) are 45 ft wide, what size of pillars is indicated?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 77% (18 reviews)
Given Problem 1 data square pillar entries and cros...View the full answer
Answered By
Nehemiah Rono
If I talk about my profession then I'm a freelancer, blogger, digital marketer, and tutor. Through these skills I earn enough money for my degree fee. I'm self dependent person who has freedom to live life accordingly.
I have done Diploma in Computer Science and Currently persuing Btech in Information Technology.
I have approx 2 months of experience in Chegg where I solve questions on the daily basis. On the other hand I also share my knowledge & experience through my own blog.
0.00
0 Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Geological Engineering questions
-
With reference to Problem 5, if pillars are square and rooms (entries and crosscuts) are 13.7 m wide, what size of pillars is indicated?
-
With reference to Problem 19, if pillars are square and rooms (entries and crosscuts) are 9 m wide, what size of pillars is indicated when the pillar safety factor is 2?
-
With reference to Problem 15, if pillars are square and rooms (entries and crosscuts) are 30 ft wide, what size of pillars are indicated when the pillar safety factor is 2?
-
A portfolio manager estimates that the volatility of her daily portfolio returns is 1.2%. She also expects this portfolio to bring a return of 6% per year. Assume that there are 252 trading days in a...
-
A person riding in a boat observes that the sunlight reflected by the water is polarized parallel to the surface of the water. The person is wearing polarized sunglasses with the polarization axis...
-
Consider the extended LAN connected using bridges B1 and B2 in Fig. 4-41(b). Suppose the hash tables in the two bridges are empty. List all ports on which a packet will be forwarded for the following...
-
What are the implications of a "super" sales day for an organization's functional areas? lo1
-
A partnership begins its first year with the following capital balances: Alfred, Capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 50,000 Bernard, Capital . . . . . . . . . . . . ....
-
Robert and John are married and have 4 dependent chiidren and earn a gross biweekly salary of $5,610. They wil also make the following tax-deduetible purchases: - Medical experises: 56.762 -...
-
You have recently been hired by Master Tools (MT) in its relatively new treasury management department. MT was founded eight years ago by Martha Masters. Martha found a method to streamline the...
-
A regular room and pillar method is used in a hard rock leadzinc mine. The ore horizon is at a depth of 1,180 ft where the overburden averages 159pcf. Laboratory tests on core samples (L/D = 2) show...
-
With reference to Problems 1 and 2, suppose the pillars are 45 45 ft and that a size effect exists such that Cp = C1 (0.78 + 0.22 Wp/Hp). If the mining height changes from 30 to 120 ft, as a sill...
-
Describe the differing investment philosophies typically applied during each of the following stages of an investors life cycle. a.Youth (ages 20 to 45) b.Middle age (ages 45 to 60) c.Retirement...
-
"The initial speed with which a ball is thrown is doubled, with the angle of projection fixed. Is the maximum height to which the ball rises doubled?" Now, let's say you are also allowed to change...
-
Wally Working Co. emiti bonos con una tasa de inters nominal (contratada) de 15%, por un valor ominal de $80,000, con un vencimiento de 5 anios. Cuando emiti los bonos, la tasa de inters del mercado...
-
Using the Central Limit Theorem. In Exercises 5-8, assume that the amounts of weight that male college students gain during their freshman year are normally distributed with a mean of 1.2 kg and a...
-
Swain Athletic Gear (SAG) operates six retail outlets in a large Midwest city. One is in the center of the city on Cornwall Street and the others are scattered around the perimeter of the city....
-
Please help Calculating NPV and IRR Businesses use NPV and IRR to determine whether a project will add - value for shareholders. After watching the CFA Level I Corporate Finance video, answer the...
-
You react to old people with a. patience b. annoyance c. sometimes a, sometimes b LO.1
-
From the choice of simple moving average, exponential smoothing, and linear regression analysis, which forecasting technique would you consider the most accurate? Why? please write it in word...
-
What effect does condensation on a glass of ice water have on the rate at which the ice melts? Will the condensation speed up the melting process or slow it down?
-
If VO= 4 v in the network shown, find VS. 8 kQ Vs V, = 4 V 4 kQ
-
The steel beam ABCD shown is simply supported at A and supported at B and D by steel cables, each having an effective diameter of 12 mm. The second area moment of the beam is I = 8(105) mm4. A force...
-
Find 1/o in the circuit shown. 12 V
-
Given that rJ = 6.3%, rRF = 4.1%, and rM = 9.4%, determine the beta coefficient for Stock J that is consistent with equilibrium.
-
Simon Companys year-end balance sheets follow. At December 31 2017 2016 2015 Assets Cash $ 33,019 $ 37,839 $ 38,623 Accounts receivable, net 93,822 65,556 54,152 Merchandise inventory 117,963 89,253...
-
PLEASE REFER TO THE 2018 ANNUAL REPORT OF STARBUKS FOR THE YEAR FISCAL YR 2018, ENDING SEPTEMBER 30, 2018. Refer to the management discussion & analysis section and write a one page summary...
Study smarter with the SolutionInn App