Question

A permeable layer has the following parameters. coefficient of permeability : k f , hydraulic gradient : ⊿h/L , porosity : φ, Darcy velocity : v, average linear velocity (velocity of groundwater flow) : u Formulate the relation between v and u

Answer #1

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A shallow alluvium aquifer (predominantly sandy material) of 5
km 2 of area has the following
characteristics: average water level from the bottom of the aquifer
= 10 m, porosity of 40%, specific yield of 25%,
permeability of 0.5 Darcy units, compressibility of water is 4.6x10
-10 m 2 /N and compressibility of the solid material is
1.8x10 -8 m 2 /N, water density is 1000 kg/m 3 , and kinematic
viscosity is 1.0x10 -6 m 2 /s.
Determine:
(a)...

Fluoride ion selective electrodes obey the following
equation:
E(V) = K -
β(0.0592)log[F-]
where the fluoride concentration is expressed as mol/L and the
temperature coefficient β is normally equal to 1.
In a normal calibration procedure you dilute a standard fluoride
solution to between 10 and 20 mg/L fluoride ion and then measure
the response of the electrode. You then plot the data and do a
linear regression to obtain the fitting coefficients K and β. Use
the plotting and...

A closed economy has the following Cobb-Douglas production
function: F(KL) = K2/5 (EL)3/5, where the notation is as in class.
The depreciation rate is 1.5% and the saving rate is 20%. The
economy is in steady state, where the population decreases at a
rate 1% and capital K increases at a rate 1%. (a) Find the growth
rates of the following variables (i) labor efficiency, E (ii) the
number of workers per machine, L/K (iii) the average productivity
of capital,...

Analyzing Starbucks' Equity Structure and Financial Position
Using either Starbucks’ most current Form 10-K or the company's
annual report, answer the following questions and prepare a
professionally written financial analysis report and, forward
opinion on Starbucks from the perspective of a portfolio manager.
Base your opinions and recommendation on the fact that you are the
portfolio manager. Your client already owns 15,000 shares of
Starbucks’ common stock. Furthermore, the client has the funds to
buy an additional 10,000 shares of...

Part I. Indicate whether true or false (T or F).
____ Storm water detention ponds typically are designed to
regulate the outflow peak rate at or below a single target value,
such as the pre-development (pre-land use change) peak runoff rate
for a specified return period event. Detention storage alters the
peak but not the volume of the outflow hydrograph.
_____ Typical rating curves for weirs are concave upward.
Typical rating curves for orifices are concave downward.
____ A sediment...

2.4 Journal Entries
Illini Company, Inc. Balance Sheet as of 12/31/20X0
Assets
Current Assets:
Cash 1,500,000
Accounts receivable, net 18,000
Inventory 50,000
Total current assets 1,568,000
Equipment 90,000
Goodwill 20,000
Total assets 1,678,000
Liabilities and shareholders' equity
Shareholders' equity:
Common stock, 20,000 shares outstanding, $1 par 20,000
Additional paid-in capital 280,000
Retained earnings 1,378,000
Total shareholders' equity 1,678,000
Total liabilities and shareholders' equity 1,678,000
Note that all additional paid-in capital (APIC) sub accounts
(e.g., APIC-options and APIC-treasury stock), if any,...

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