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Which of the following best explains this graph?

1. The graph provides a visual representation of how Hurdlandia shifted production from rice to automobiles over time.
2. The graph illustrates how agriculture and industry compete for resources in Hurdlandia.
3. The graph shows the growth of industry at the expense of agriculture in Hurdlandia.
4. The graph shows annual amounts of Hurdlandia's two major imports.
5. The graph shows the levels of production of Hurdlandia's two major exports

Need urgent help for these questions please, can someone solve.

A project your firm is considering for implementation has these estimated costs and revenues: an investment cost of $50,000; maintenance costs that start at $5,000 at the end of year (EOY) 1 and increase by $1,000 for each of the next 4 years, and then remain constant for the following 5 years; savings of $20,000 per year (EOY 1—10); and finally a resale value of $35,000 at the EOY 10. If the project has a 10-year life and the firm's MARR is 10% per year, what is the present worth of the project? Is it a sound investment opportunity? 

Water at 22C flows through a 1.8 m-high, 49% porosity GAC bed at a 6 m/h approach velocity.

1.100 carbon dioxide at 30°C and 300 kPa absolute pressure expands isothermally to an absolute pressure of 165 kPa.

Determine the final density of the gas.

A multiple-effect evaporator is an apparatus for efficiently by means of the heat from steam to evaporate water. Water is boiled in a sequence of vessels, each held at a lower pressure than the last. Because the boiling temperature of water decreases as pressure decreases, the vapour boiled off in one vessel can be used to heat the next. and only the first vessel requires an external source of heat. While in theory. evaporators may be built with an arbitrarily large number of stages, evaporators with more than four stages are rarely practical except in systems where the liquor is the desired product such as in chemical recovery systems where up to seven effects are used. Multiple effect evaporation commonly uses sensible heat in the condensate to preheat liquor to be flashed. In practice the design liguid flow paths can be somewhat complicated in order to extract the most recoverable heat and to obtain the highest evaporation rates from the equipment. The evaporator is used to remove the solvent from the solution. In the four stage evaporation system used in sugar cane industries, a 50% by mass sugar solution is concentrated to by 65% by evaporating an equal amount of water in each of four stages. With total input of 50,0XX lb/h, a product stream of 35,0XX lb/h is produced.

 Draw the block flow diagram?

 Write the general material balance for the system?

 Determine the compositions of intermediate stream?

 Whether the mass flow rate of each stream can be calculated? If yes or no, justify your answer.

 Perform the Degree freedom of analysis of overall system and individual units?

 Write the strategy to solve the problem.

A multiple-effect evaporator is an apparatus for efficiently by means of the heat from steam to evaporate water. Water is boiled in a sequence of vessels, each held at a tower pressure than the last. Because the boiling temperature of water decreases as pressure decreases, the vapour boiled off in one vessel can be used to heat the next. and only the first vessel requires an external source of heat. While in theory evaporators may be built with an arbitrarily large number of stages, evaporators with more than four stages are rarely practical except in systems where the liquor is the desired product such as in chemical recovery systems where up to seven effects are used. Multiple effect evaporation commonly uses sensible heat in the condensate to preheat liquor to be flashed. In practice the design liquid flow paths can be somewhat complicated in order to extract the most recoverable heat and to obtain the highest evaporation rates from the equipment. The evaporator is used to remove the solvent from the sotution. In the four stage evaporation system used in sugar cane industries, a 50% by mass sugar solution is concentrated to by 65% by evaporating an equal amount of water in each of four stages. With total input of 50,057 lb/h, a product stream of 35,057lb/h is produced.

 Draw the block flow diagram?

 Write the general material balance for the system?

 Determine the compositions of intermediate stream?

 Whether the mass flow rate of each stream can be calculated? If yes or no, justify your answer

 Perform the Degree freedom of analysis of overall system and individual units? Write the strategy to solve the problem.

Air at T1 = 300 K, P1 = 303 kPa and V1 = 0.5 m/s enters the venturi scrubbers as shown in the following figure. The air leaves the venturi at T2 = 220 K and P2 = 101 kPa; A1 = 0.6 m² and A2 = 0.1 m². Determine the horizontal force required to hold the venturi stationary. Assume R = 0.287 kJ/ (kg.K)

1. 6. A 100 kg/h ethanol-methanol stream is to be separated in a distillation column. The feed has 40% ethanol, and the distillate has 90% methanol. The flow rate of the bottom stream product is 40kg / h Determine the percentage of methanol in the bottom stream. Perform degree of freedom analysis. Draw the diagram. Write the inlet and outlet flow rate values in different system of units. Suggest any other methods applicale to separate ethanol-methanol stream. How the ethanol- methanol stream is separated in distillation column?

A machine with a book value of $126,000 has an estimatedsix-year life. A proposal is offered to sell the old machine for$84,000 and replace it with a new machine at a cost of $145,000.The new machine has a six-year life with no residual value. The newmachine would reduce annual direct labor costs from $55,000 to$43,000.

Replace Equipment A machine with a book value of $126,000 has anestimated six-year life. A proposal is offered to sell the oldmachine for $98,000 and replace it with a new machine at a cost of$155,000. The new machine has a six-year life with no residualvalue. The new machine would reduce annual direct labor costs from$68,000 to $58,000. Note: Consider an outflow a negative value; aninflow a positive value. If an amount is zero, enter "0". HideHint(s) Prepare a differential analysis dated February 18, 2014, onwhether to continue with the old machine (Alternative 1) or replacethe old machine (Alternative 2). Differential Analysis Continuewith Old Machine (Alt. 1) or Replace Old Machine (Alt. 2) February18, 2014 Continue with Old Machine (Alternative 1) Replace OldMachine (Alternative 2) Differential Effect on Income (Alternative2) Revenues: Proceeds from sale of old machine $ $ $ Costs:Purchase price Direct labor (6 years) Income (Loss) $ $ $

Prepare a differential analysis datedOctober 3, 2012 to determine whether Gilroy should lease(Alternative 1) or purchase (Alternative 2) the machine. (Hint:This is a "lease or buy" decision, which must be analyzed from theperspective of the equipment user, as opposed to the equipmentowner.) If an amount is zero, enter zero "0".

Lease Machine (Alternative1)

Costs:

Purchase Price

Freight and Installation

Repair and Maintenance (4years)

Lease (4 years)

Income (loss)

Buy Machine (Alternative2)

Costs:

Purchase Price

Freight and Installation

Repair and Maintenance (4years)

Lease (4 years)

Income (loss)

Differential Income (Alternative3)

Costs:

Purchase Price

Freight and Installation

Repair and Maintenance (4years)

Lease (4 years)

Income (loss)

Sloan Corporation is considering new equipment. The equipmentcan be purchased from an overseas supplier for $3,180. The freightand installation costs for the equipment are $640. If purchased,annual repairs and maintenance are estimated to be $430 per yearover the four-year useful life of the equipment. Alternatively,Sloan can lease the equipment from a domestic supplier for $1,420per year for four years, with no additional costs.

Prepare a differential analysis dated December 3, to determinewhether Sloan should lease (Alternative 1) or purchase (Alternative2) the machine. (Hint: This is a "lease or buy"decision, which must be analyzed from the perspective of themachine user, as opposed to the machine owner.) If an amount iszero, enter zero "0". Use a minus sign to indicate a loss.

Carr Corporation is considering new equipment. The equipment canbe purchased from an overseas supplier for $3,900. The freight andinstallation costs for the equipment are $515. If purchased, annualrepairs and maintenance are estimated to be $410 per year over thefour-year useful life of the equipment. Alternatively, Carr canlease the equipment from a domestic supplier for $1,750 per yearfor four years, with no additional costs.

A. Prepare a differential analysis dated August 4 to determinewhether Carr should lease (Alternative 1) or purchase (Alternative2) the equipment. Refer to the lists of Labels and AmountDescriptions for the exact wording of the answer choices for textentries. For those boxes in which you must enter subtractive ornegative numbers use a minus sign. If there is no amount or anamount is zero, enter "0". A colon (:) will automatically appear ifrequired.

Hint: This is a “lease or buy” decision, whichmust be analyzed from the perspective of the equipment user, asopposed to the equipment owner.

Score: 60/89

Carr Corporation is considering new equipment. The equipment canbe purchased from an overseas supplier for $3,900. The freight andinstallation costs for the equipment are $515. If purchased, annualrepairs and maintenance are estimated to be $410 per year over thefour-year useful life of the equipment. Alternatively, Carr canlease the equipment from a domestic supplier for $1,750 per yearfor four years, with no additional costs. Required: A. Prepare adifferential analysis dated August 4 to determine whether Carrshould lease (Alternative 1) or purchase (Alternative 2) theequipment. Refer to the lists of Labels and Amount Descriptions forthe exact wording of the answer choices for text entries. For thoseboxes in which you must enter subtracted or negative numbers use aminus sign. If there is no amount or an amount is zero, enter "0".A colon (:) will automatically appear if required. (Hint: This is a“lease or buy” decision, which must be analyzed from theperspective of the equipment user, as opposed to the equipmentowner.) B. Determine whether the Carr should lease (Alternative 1)or purchase (Alternative 2) the equipment.

Carr Corporation is considering new equipment. The equipment canbe purchased from an overseas supplier for $3,900. The freight andinstallation costs for the equipment are $515. If purchased, annualrepairs and maintenance are estimated to be $410 per year over thefour-year useful life of the equipment. Alternatively, Car canlease the equipment from a domestic supplier for $1,750 per yearfor four years, with no additional costs. Prepare a differentialanalysis dated August 4 to determine whether Carr should lease(Alternative 1) or purchase (Alternative 2) the equipment. Hint:This is a “lease or buy” decision, which must be analyzed from theperspective of the equipment user, as opposed to the equipmentowner.

Prepare a differential analysis datedOctober 3, 2012 to determine whether Gilroy should lease(Alternative 1) or purchase (Alternative 2) the machine. (Hint:This is a "lease or buy" decision, which must be analyzed from theperspective of the equipment user, as opposed to the equipmentowner.) If an amount is zero, enter zero "0".

Lease Machine (Alternative1)

Costs:

Purchase Price

Freight and Installation

Repair and Maintenance (4years)

Lease (4 years)

Income (loss)

Buy Machine (Alternative2)

Costs:

Purchase Price

Freight and Installation

Repair and Maintenance (4years)

Lease (4 years)

Income (loss)

Differential Income (Alternative3)

Costs:

Purchase Price

Freight and Installation

Repair and Maintenance (4years)

Lease (4 years)

Income (loss)

Urban Styles Corporation is considering new equipment. Theequipment can be purchased from an overseas supplier for $3,200.The freight and installation costs for the equipment are $640. Ifpurchased, annual repairs and maintenance are estimated to be $430per year over the four-year useful life of the machine.Alternatively, Urban Styles can lease the machine from a domesticsupplier for $1,400 per year for four years, with no additionalcosts.

Prepare a differential analysis dated October 3, 2012, todetermine whether Urban Styles should lease (Alternative 1) orpurchase (Alternative 2) the machine. (Hint: This is a "lease orbuy" decision, which must be analyzed from the perspective of theequipment user, as opposed to the equipment owner.) If an amount iszero, enter zero "0".

Sloan Corporation is considering new equipment. The equipment can be purchased from an overseas supplier for $125,500. The freight and installation costs for the equipment are $1,600. If purchased, annual repairs and maintenance are estimated to be $2,500 per year over the five-year useful life of the equipment. Alternatively, Sloan can lease the equipment from a domestic supplier for $30,000 per year for five years, with no additional costs.

Prepare a differential analysis dated December 3 to determine whether Sloan should lease (Alternative 1) or purchase (Alternative 2) the equipment. Hint: This is a "lease or buy" decision, which must be analyzed from the perspective of the equipment user, as opposed to the equipment owner. If an amount is zero, enter "0". Use a minus sign to indicate a loss.

Jensen Inc., a graphic arts studio, is considering the purchase of computer equipment and software for a total cost of $18,000. Jensen can pay for the equipment and software over three years at the rate of $6,000 per year. The equipment is expected to last 10 to 20 years, but because of changing technology, Jensen believes it may need to replace the system in as soon as three to five years. A three-year lease of similar equipment and software is available for $6,000 per year. Jensen’s accountant has asked you to recommend whether the company should purchase or lease the equipment and software and to suggest the length of time over which to depreciate the software and equipment if the company makes the purchase.

Required:

Ignoring the effect of taxes, would you recommend the purchase or the lease? Why or why not? Referring to the definition of depreciation, what appropriate useful life should be used for the equipment and software?

In a long run equilibrium, Country A has an interest rate of 10%, whereas Country B has an interest rate of 7%. Real output in each country is growing at 2% per year. The money growth rate in Country B is 6%. Please provide explanations for each point below (show your calculations).

a. Which country has the higher inflation rate?

b. Which country has a higher real interest rate?

c. What is the inflation rate in Country B?

d. What is the inflation rate and money growth rate in Country A?...

Solve for 8x - 3 = 6x - 9

A manufacturing firm’s production function is Q = KL + K + L. The price r of capital services is equal to 1, and let w denote the price of labor services. If the firm is required to produce 5 units of output, for what values of w would a cost-minimizing firm use

a) only labor?

b) only capital?

c) both labor and capital?

AP Chemistry Unit 4

3. A student dissolved a 0.139g sample of oxalic acid, H,C,O,, in water in an Erlenmeyer flask. Then the student titrated the H,C,O, solution in the flask with a solution of KMnC which has a dark purple color. The balanced chemical equation for the reaction that occurred during the titration is shown below.

Identify the species that was reduced in the titration reaction.

Justify your answer in terms of oxidation numbers.

Use Lagrange multipliers in the following problems.

Find the rectangular box with a volume of 16ft^3 that has minimum suface area.

How far from the center of the Earth (in km) is the center ofmass of the Earth + satellite system if the satellite has a mass of8250 kg and is in orbit 43100 km above the surface of the Earth.The mass of the Earth is 5.98 * 1024 kg and the radius of the Earthis 6370 km.

A satellite moves in a circular orbit around the Earth at a speed of 6.6km/s. Determine the satellite's altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 X 10^24 kg. The value of the universal gravitational constant is 6.67259 X 10^-11 N.m2/kg2. Answer in units of km.

A satellite is in a circular orbit 29000 km above the Earth's surface, i.e.,it moves on a circular path under the influence of nothing but the Earth's gravity. Find the speed of the satellite. The radius of the Earth is 6.37 x10^6m,and the acceleration of gravity at the satellite's altitude is 0.318952m/s ^2 . Answer in units of km/s . and also Find the time it takes to complete one orbit around the Earth .Answer in units of s.

An astronaut orbiting the Earth is preparing to dock with asatellite. The satellite is in a circular orbit 700 km above theEarth's surface, where the free-fall acceleration is 8.13 m/s2.Take the radius of the Earth as 6400 km.

(a) Determine the speed of the satellite.
__________m/s
(b) Determine the time interval required to complete one orbitaround the Earth.
__________min

A satellite is orbiting the Earth at a distance of 2.89RE and with a speed of 4.59 km/s. With what speed would the satellite hit the Earth's surface if somehow it suddenly stopped and fell to Earth? Ignore air resistance.

5.) At the Earth's surface, a projectile is launched straight up at a speed of 8.00 km/s. To what height above the Earth Surface will it rise? (Ignore air resistance and the rotation of the Earth)

Find  . Be sure to show all appropriate work that properly justifies the limit technique you used.

A projectile with mass of 378 kg is launched straight up from theEarth's surface with an initial speed vi. What magnitude of vienables the projectile to just reach a maximum height of 2.8RE,measured from the center of the Earth? Ignore air friction as theprojectile goes through the Earth's atmosphere.
km/s

a) show that the total energy of a satellite in a circular orbitabout Earth is equal to half of the potential energy.

b) A projectile is fired straight up from the south pole of theEarth with an initial speed v_i=15km/s. Find the speed ofthe projectile when it is very far from Earth, neglecting effectsdue to air resestance.

c) A projector is fired straight up from the south pole of theEarth with an initial speed v_i= 8.0km/s. Find themaximum height it reaches, neglecting effects due to airresistance.

Please explain and show work. I need to understand this.Thanks

A projectile is fired straight upward from the Earth's surface atthe South Pole with an initial speed equal to one third the escapespeed. (The radius of the Earth is 6.38 106 m.)

(a) Ignoring air resistance, determine how far from the center ofthe Earth the projectile travels before stopping momentarily.
m

(b) What is the altitude of the projectile at this instant?
m