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Ask a Question Answer a QuestionAssume that there are two goods. The price of the first good is $10 and the price of the second good is $20. The income is m=200.
A piston of the cross-sectional area is used in a hydraulic press to exert a small force of magnitude f on the enclosed liquid. A connecting pipe leads to a larger piston of cross-sectional area A (Fig. 14-36). If the piston diameters are 2.94 cm and 51.7 cm, what force magnitude on the small piston will balance a 39.6 kN force on the large piston?
A grocery store sells many different items. Construct an abstract class Item with attributes String name double unit Price. The methods of Item are getters and setters along with the requisite constructors, and one abstract method double cost that returns the cost of the item UnitItem and Weightltem are concrete classes that extend Item. An object belonging to Unit Item encapsulates a grocery item that is sold by the unit, such as a can of soup or a gallon of milk. The instance variable unitPrice (inherited from Item) stores the price of one item. Unitltem has an additional instance variable, amount, that holds the number of units of a particular item. Unitltem implements the method double cost0 that returns the cost of amount units of an item Weightltem represents an item sold by weight, such as nuts, fruits, or vegetables. In this case, unitPrice represents the price per pound of an item. Weightltem has an additional instance variable, weight, that holds the number of pounds of some item. Weightltem also implements the method double cost0 returns the total cost of weight pounds of the item Both classes should include the appropriate constructors as we as getter and setter methods a. Design and implement ltem, Weightltem, and Unitltem. Test your methods. b. A ShoppingCart class has a list of Item such that each element is a Unitltem or a Weightltem reference. Additionally, ShoppingCart implements a method void checkout that determines the total cost all items in the "cart," that is the list. A typical call to checkout0 might produce the following interactive output
Based on the figure below, explain about gas processing plant including the LNG plant.
(Write your own explanation as a story about feed gas journey from the beginning to the end of processes until it is converting to final products.)
Crystal field theory (CFT) is a simple model used to explain the bonding and account for the characteristic optical and magnetic properties of coordination complexes. In a few sentences (no more than 150 words) and using any relevant illustration explains the tenets of CFT. (6 marks) b) Choose two complexes, one of an octahedral coordination geometry and the other of tetrahedral coordination geometry that are diamagnetic and paramagnetic respectively, that result from coordination between any two of the metal ions Cr2+, Mn²+, Fe²+, Co2+, Ni2+ or Fe+ and any two of the ligands, I, II, and III. For these two complexes apply CFT to evaluate the following: include in your discussion completely labelled crystal field splitting diagrams and calculations 1. their coordination geometry (draw structures), (4 marks) 2. the colour observed for the octahedral complex, (3 marks) 3. the nature of the magnetism observed, and (6 marks) (determine) which one is more stable. (6 marks) NB. Units for D, or D. should be in kJ mol' (use Avogadro's number to convert) and note units for Imax.
N II NE N *O III Fe Zhou, X., et al. Nat Commun 10, 1488 (201 Ni2+ +270 Co2+ +250 Fe2+ pnergy (P) for select first row transition metal ions. TRN TO THE
The ligands that I use too is a salen ligand and a 2,2' bi pridine. the ligands are as above
Transcript: Ethylene oxide is produced by the catalytic oxidation of ethylene: An undesired competing reaction is the combustion of ethylene to CO2 The feed to a reactor contains 2 mol C2Ha/mol O2. The conversion and yield in the reactor are respectively 25% and 0.70 mol C2H40 produced/mol C2H4 consumed. A multiple-unit process separates the reactor outlet stream components: C2H4 and O2 are recycled to the reactor, C2H40 is sold, and CO2 and H2O are discarded. The reactor inlet and outlet streams are each at 450°C, and the fresh feed and all species leaving the separation process are at 25°C. The combined fresh feed- recycle stream is preheated to 450°C. (a) Taking a basis of 2 mol of ethylene entering the reactor, draw and label a flowchart of the complete process (show the separation process as a single unit) and calculate the molar amounts and compositions of all process streams (b) Calculate the heat requirement (kJ) for the entire process and that for the reactor alone. Data for gaseous ethylene oxide H: =-5 1 .00 kJ/mol Cp[U/(mol K)]4.69+0.2061T-9.995 x 10-5T2 where T is in kelvins. (c) Calculate the flow rate (kg/h) and composition of the fresh feed, the overall conversion of ethylene, and the overall process and reactor heat requirements (kW) for a production rate of 1500 kg C2H4O/ day. Briefly explain the reasons for separating and recycling the ethylene-oxygen stream. (d) One of the attributes of this process defined in the problem statement is extremely unrealistic. What is it?
Transcript:Â Linseed oil with a specific gravity of 0.93 enters the reducing bend shown in Figure 3 with a velocity of 3 m/s and a pressure of 275 kPa. The bend is in a horizontal plane. Calculate the X and Y forces required to hold the bend in place. Neglect energy losses in the bend.
Transcript: The shaft shown in the figure is rotating with a constant speed of (300/n) rpm. The three masses are connected to the shaft and rotate with it, causing an unbalance. The dynamic bearing reaction force at point B is measured asŘ= 0.21 +0.11, Newton. a) Determine the magnitude (Newton) and location of the dynamic bearing reaction force at point A. b) Determine the location and the magnitude (kg.mm) of the mass corrections to be added in the planes D; and Dy in order to achieve dynamic balance. DI DI | 10 15 cm cm A 379 VD 2 - 25 cm 20 cm 30 cm 15 cm mc: = A, kg mm m30; -A3 kg mm A2 =8 kg.mm A3 - 8 kg.mm
 Briefly explain why it was necessary to pass the Digital Millennium Copyright Act (DMCA), into law in 1998.