A unit of area often used in measuring land areas is the hectare, defined as 104 m2.

Question:

A unit of area often used in measuring land areas is the hectare, defined as 104 m2. An open-pit coal mine consumes 75 hectares of land, down to a depth of 26 m, each year. What volume of earth, in cubic kilometers, is removed in this time?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals of Physics

ISBN: 978-0471758013

8th Extended edition

Authors: Jearl Walker, Halliday Resnick

See More Books

Question Posted: Nov 09, 2010 07:02 AM

See More Questions

Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 75 tons of coal into each car. The actual...
A South American farms 960 hectares of land on which he grows squash, kale, lettuce and beans. Of the total, 680 hectares are suitable for all four vegetables, but the remaining 280 hectares are...
The Cumberland Mine is a small mine that extracts coal in central Alberta. Each tonne of coal mined is 40% Grade A coal, 40% Grade B coal, and 20% coal tar. All output is sold immediately to a local...
Peppers Lockdown produces keys for homes and cars. As Peppers is planning for next year's production, he decided to implement a high-low system to forecast future costs. With total production of...
a. Go to finance.yahoo.com and find the profiles for PepsiCo (PEP) and IBM (IBM) and then look at each firm's annual balance sheet and income statement under "Financials" Calculate the present value...
A population of 600 semiconductor wafers contains wafers from three lots. The wafers are categorized by lot and by whether they conform to a thickness specification. The following table presents the...
What factors have led to increased organizational interest in HR metrics and workforce analytics?
An accountant wishes to predict direct labor cost (y) on the basis of the batch size (x) of a product produced in a job shop. Data for 12 production runs are given in Table 13.5, along with the Excel...
What are the key mechanisms through which organizational culture is transmitted and sustained across generations of employees ?
Describe the functions of the MS and SIM. Why does GSM separate the MS and SIM? How and where is user-related data represented/stored in the GSM system? How is user data protected from unauthorized...
You are to fix dinners for 400 people at a convention of Mexican food fans. Your recipe calls for 2 jalapeno peppers per serving (one serving per person). However, you have only habanero peppers on...
(a) A unit of time sometimes used in microscopic physics is the shake. One shake equals 10-8 s. Are there more shakes in a second than there are seconds in a year? (b) Humans have existed for about...
Determine the equivalent capacitance of the circuit shown in Fig. 19-53. Ca HH -V-
A(n) _____________ is an unwritten rule of behavior.
Discuss the resources your campus has in place to support the job-seeking process. Do you plan to use these resources?
Explain the goal of workplace surveillance systems.
What are the qualities youre looking for in an employer? Related to some of the information in this chapter, how could you retrieve information to see if those qualities exist?
______________ refers to the development of a plan that emphasizes goals, initiatives, strategies, and targets utilized to help employees strive for a shared vision and commitment to the core values...
A monopolistically competitive industry exists in both Pugelovia and the rest of the world, but there has been no trade in this type of product. Trade in this type of product is now opened. a....
In July 2013, cnet.com listed the battery life (in hours) and luminous intensity (i. e., screen brightness, in cd/m2) for a sample of tablet computers. We want to know if screen brightness is...
Use Table 18.5 to compute the ratio of net worth for the highest income quintile with that of the lowest income quintile. Given the other evidence in this chapter, do you suspect that this ratio has...
A 120 V potential difference is applied to a space heater that dissipates 500 W during operation. (a) What is its resistance during operation? (b) At what rate do electrons flow through any cross...
How much electrical energy is transferred to thermal energy in 2.00 h by an electrical resistance of 400 when the potential applied across it is 90.0 V?
In Figure, R 1 = 6.00 , R 2 = 18.0 , and the ideal battery has emf = 12.0 V. What are the (a) Size and (b) Direction (left or right) of current i 1 ? (c) How much energy is dissipated by all four...
How truly do drive elements and social impact instruments, for example, social personality hypothesis and gathering polarization, deeply mold hierarchical way of behaving and decision-production at...
Sub Station and Planet Sub reported the following selected financial data ( $ in thousands ) . Sub Station s business strategy is to sell the best tasting sandwich with the highest quality...
The credit manager of Montour Fuel has gathered the following information about the company's accounts receivable and credit losses during the current year: Net credit sales for the year $ 7 , 5 0 0...

A unit of area often used in measuring land areas is the hectare, defined as 104 m2.

Question:

Step by Step Answer:

The volume removed ...View the full answer

Fundamentals of Physics

Students also viewed these Mechanics questions