Chapter 5, Problem 5.9CU

2) The figure below illustrates a package delivery system. A package having mass M slides along a horizontal frictionless surface (base) with a speed Vo when it encounters a ramp having a ramp angle 0. The package continues sliding up the frictionless ramp to a vertical height h above the base where it encounters a region of rough surface along the ramp having coefficient of kinetic friction Hg. After traveling a length L along the rough surface, the package comes to rest. Determine an expression {L, Vo, g, 0, µk} for h.

3.1-112 Weenies and Buns is a food processing plant which manu- factures hot dogs and hot dog buns. They grind their own flour for the hot dog buns at a maximum rate of 200 pounds per week. Each hot dog bun requires 0.1 pound of flour. They currently have a con- tract with Pigland, Inc., which specifies that a delivery of 800 pounds of pork product is delivered every Monday. Each hot dog requires pound of pork product. All the other ingredients in the hot dogs and hot dog buns are in plentiful supply. Finally, the labor force at Weenies and Buns consists of 5 employees working full time (40 hours per week each). Each hot dog requires 3 minutes of labor, and each hot dog bun requires 2 minutes of labor. Each hot dog yields a profit of $0.88, and each bun yields a profit of $0.33. Weenies and Buns would like to know how many hot dogs and how many hot dog buns they should produce each week so as to achieve the highest possible profit. (a) Formulate a linear programming model for this…

XYZ Company Ltd has consulted your firm Zig-Zag Energy over an intention to generate electricity in Ghana. Being the senior project engineer for Zig-Zag Energy, management has asked you to prepare a detailed technical report in respect to the project. a) Discuss the major factors to take into consideration when consulting on such projects.                                                                                                           A tank containing air is stirred by a paddle wheel. The work input to the paddle wheels is 2000KJ and the heat transferred to the surrounding from the tank is 6000KJ. b) Determine the change in the internal energy of the system                                              There has been a sharp differences between the board of Blue-Blue Energy over which of the energy sources (hydroelectric power plant-HEP and Coal fired plant) is best for power generation. As an energy expert, you were confronted by the debating faction for your opinion. You…

3. Laws on Conservation. Using the energy model sketched below plus concepts of energy conservation, consider the impact of a dirty war on the global energy. To start, assume that the impact of this war has created an atmosphere that absorbs 75% of the incoming sunlight, while the albedo is reduced to nearly 20%. Let's assume that Earth's ability to reflect incoming solar radiation is negligible. The Earth's surface radiates 240 W/m2, all of which is absorbed by the atmosphere. Assuming that Earth can be modeled as a blackbody emitter and incoming/outgoing energy as shown in the schematic, find the following quantities: a) The "nuclear winter" temperature [°C] of the surface of the Earth b) X, the rate [W/m²] at which radiation is emitted from the atmosphere to space c) Y, the rate [W/m²] of absorption of short-wavelength solar radiation at the Earth's surface d) Z, the rate [W/m2] at which the atmosphere radiates energy to the Earth's surface Incoming 342 W/m² Reflected to space X…

2.8 The expression "tool and die repair" is most commonly used for.. O the process of disassembling the die and replacing worn parts with fresh elements O the sequence of material addition (through welding) and subsequent machining to final precise shape in worn areas 2.9 What is the most common material to make deforming tools (dies)? X steel O ceramics O cemented carbide O diamond 2.10 What is one of the main advantages of additive manufacturing compared to subtractive manufacturing? X high degree of freedom with regard to workpiece geometry O high strength of workpieces that can be achieved (e.g. compared to milled workpieces with same workpiece dimensions) 2.11 How is the true strain of a deforming process calculated (referring to a simple upsetting process as explained in the lecture)? (h: height, index 0: prior to deforming) O phi, = In (h,h,) X phi, = In (h./h.) O phi, = (h,-h./h, 2.12 In hot extrusion, the recrystallization process takes place during the deforming process. O…

Suppose you have two kettles – a plug-in electric kettle and a stovetop kettle. The electric kettle uses electricity from a natural gas fired powerplant, while you boil water in your stovetop kettle on a natural gas burner. a) Based on the following information, which of these kettles demonstrates a higher energy efficiency (i.e., which is more efficient at using energy from fuel to heat water)? Please calculate the efficiencies of each kettle and express answers as percentages. ​ -The natural gas power plant converts chemical energy of the natural gas to electricalenergy with 58% efficiency. -High-voltage power lines from the power plant to your house convey electricity with92% efficiency. -The electric kettle converts electrical energy to thermal energy in the water with 85%efficiency (the other 15% heats up the kettle itself). -The stove burner converts chemical energy of natural gas to thermal energy with 98%efficiency (the other 2% is light). -The stovetop kettle transfers 35% of…

I need the answer as soon as possible

How can the idea of design and development distinguish engineering from science?

Q2 (a) Employ FOUR (4) interrelated constraints which are most vital to improve a spoon design for a fast food kiosk,