Monthly Archives: February 2021

A rigid insulated vessel contains 12 kg of oxygen at 200 kPa, 280 K separated by a membrane from 26 kg carbon dioxide at 400 kPa, 360 K. The membrane is removed and the mixture comes to a uniform state. Find the final temperature, pressure and the entropy generation.

A rigid insulated vessel contains 12 kg of oxygen at 200 kPa, 280 K separated by a membrane from 26 kg carbon dioxide at 400 kPa, 360 K. The membrane…

Continue Reading A rigid insulated vessel contains 12 kg of oxygen at 200 kPa, 280 K separated by a membrane from 26 kg carbon dioxide at 400 kPa, 360 K. The membrane is removed and the mixture comes to a uniform state. Find the final temperature, pressure and the entropy generation.

Ejercicio #1 Resuelve la ecuación logarítmica log, x + log, 2 = 3 Ejercicio #2 Resuelve la ecuación logarítmica log, x + log2 (x − 2) = 3 Ejercicio #3 Resuelve la ecuación logarítmica In(6x – 3) – In(4.x – 1) = ln x

Ejercicio #1 Resuelve la ecuación logarítmica log, x + log, 2 = 3 Ejercicio #2 Resuelve la ecuación logarítmica log, x + log2 (x − 2) = 3 Ejercicio #3…

Continue Reading Ejercicio #1 Resuelve la ecuación logarítmica log, x + log, 2 = 3 Ejercicio #2 Resuelve la ecuación logarítmica log, x + log2 (x − 2) = 3 Ejercicio #3 Resuelve la ecuación logarítmica In(6x – 3) – In(4.x – 1) = ln x

3. Bending Stresses Consider the steel beam loaded as shown. This beam has the cross-section shown and is simply-supported. The magnitude of the distributed load is equal to w0 = 0.25 kips/f t. a. Calculate the shear and moment functions for this beam based upon the shown loading. Determine the maximum (absolute) moment in the beam as a function of w0 (you may need to determine the reactions to accomplish this). b. Plot the shear and moment diagrams using MATLAB c. Determine the moment of inertia, I, for the given cross-section d. Draw the bending stress diagrams at the max moment. What are the maximum and minimum bending stresses and strains that the beam will experience?

Bending Stresses Consider the steel beam loaded as shown. This beam has the cross-section shown and is simply-supported. The magnitude of the distributed load is equal to w0 = 0.25…

Continue Reading 3. Bending Stresses Consider the steel beam loaded as shown. This beam has the cross-section shown and is simply-supported. The magnitude of the distributed load is equal to w0 = 0.25 kips/f t. a. Calculate the shear and moment functions for this beam based upon the shown loading. Determine the maximum (absolute) moment in the beam as a function of w0 (you may need to determine the reactions to accomplish this). b. Plot the shear and moment diagrams using MATLAB c. Determine the moment of inertia, I, for the given cross-section d. Draw the bending stress diagrams at the max moment. What are the maximum and minimum bending stresses and strains that the beam will experience?

T = 150°C 9N www Ps= 100 kPa pure H2O sat vapor Flash jevaporator 1. (30 p.) Consider the scheme shown in the figure Heat source TM = 200°C for producing fresh water from all waler. The conditions are as stown in the ligure. Assume that the properties of salt water are the same as those of pure water. The outer walls of heat exchanger. Heater 4 flash ovaporator and pump can be considered as thermally Insulated. The pressure drop of a continuous stream across the heat exchanger and hcater are negligible. exchanger (insulated) a) Deletrite the ratio Heat wy (17/3), which gives the Ps 100 kPa sat.liquid saltwater (concentrated) to 135″C pure liquid H2O out mass fraction of all water purified. P2 – 700 kPa b) Determine the specific pump work, in kJ per kg or T2-15.5°C Pump liquid scawater. Liquid seawater c) Determine the specific heat input for the heater, in 7, -15°C kj per kg of liquid scawator. P, = 100 kPa d) Determine the specific cntropy production for the Clash evaporator and the healer, in kJK per kg or liquid seawaler.

T = 150°C 9N www Ps= 100 kPa pure H2O sat vapor Flash jevaporator 1. (30 p.) Consider the scheme shown in the figure Heat source TM = 200°C for…

Continue Reading T = 150°C 9N www Ps= 100 kPa pure H2O sat vapor Flash jevaporator 1. (30 p.) Consider the scheme shown in the figure Heat source TM = 200°C for producing fresh water from all waler. The conditions are as stown in the ligure. Assume that the properties of salt water are the same as those of pure water. The outer walls of heat exchanger. Heater 4 flash ovaporator and pump can be considered as thermally Insulated. The pressure drop of a continuous stream across the heat exchanger and hcater are negligible. exchanger (insulated) a) Deletrite the ratio Heat wy (17/3), which gives the Ps 100 kPa sat.liquid saltwater (concentrated) to 135″C pure liquid H2O out mass fraction of all water purified. P2 – 700 kPa b) Determine the specific pump work, in kJ per kg or T2-15.5°C Pump liquid scawater. Liquid seawater c) Determine the specific heat input for the heater, in 7, -15°C kj per kg of liquid scawator. P, = 100 kPa d) Determine the specific cntropy production for the Clash evaporator and the healer, in kJK per kg or liquid seawaler.

Your Task. Analyze the following poorly written claim letter. List its weaknesses. If your instructor directs, revise it. Current date Mr. Jason M. Amato TEK Copier Solutions 13429 North 59th Avenue Glendale, AZ 85307 Dear Sir. Thate to write to you with a complaint, but my company purchased four of your Multifunction SX500 photocopiers, and we’ve had nothing but trouble ever since. Your salesperson, Gary Kazan, assured us that the Multifunction SX500 could easily handle our volume of 3,000 copies a day. This seemed strange since the sales brochure said that the Multifunction SX500 was meant for 500 copies a day. But we put our faith in Mr. Kazan. What a mistake! Our four SX copiers are down constantly, and we can’t go on like this. Because they are still under warranty, they eventually get repaired. But we are losing considerable business in downtime. Because your Mr. Kazan has been less than helpful I telephoned the district manager. Victor Martineau. I suggested that we trade in our Multifunction SX500 copiers (which we got for $2,500 each) on two Multifunction XX800 models (at $13,500 each). However, Mr. Martineau said he would have to charge 50 percent depreciation on our SX500 copiers. What a rip-off. I think that 20 percent depreciation is more rea- sonable since we’ve had the machines only three months. Mr. Martineau said he would get back to me, and I haven’t heard from him since.

Your Task. Analyze the following poorly written claim letter. List its weaknesses. If your instructor directs, revise it. Current date Mr. Jason M. Amato TEK Copier Solutions 13429 North 59th…

Continue Reading Your Task. Analyze the following poorly written claim letter. List its weaknesses. If your instructor directs, revise it. Current date Mr. Jason M. Amato TEK Copier Solutions 13429 North 59th Avenue Glendale, AZ 85307 Dear Sir. Thate to write to you with a complaint, but my company purchased four of your Multifunction SX500 photocopiers, and we’ve had nothing but trouble ever since. Your salesperson, Gary Kazan, assured us that the Multifunction SX500 could easily handle our volume of 3,000 copies a day. This seemed strange since the sales brochure said that the Multifunction SX500 was meant for 500 copies a day. But we put our faith in Mr. Kazan. What a mistake! Our four SX copiers are down constantly, and we can’t go on like this. Because they are still under warranty, they eventually get repaired. But we are losing considerable business in downtime. Because your Mr. Kazan has been less than helpful I telephoned the district manager. Victor Martineau. I suggested that we trade in our Multifunction SX500 copiers (which we got for $2,500 each) on two Multifunction XX800 models (at $13,500 each). However, Mr. Martineau said he would have to charge 50 percent depreciation on our SX500 copiers. What a rip-off. I think that 20 percent depreciation is more rea- sonable since we’ve had the machines only three months. Mr. Martineau said he would get back to me, and I haven’t heard from him since.

Consider a three bus power system shown in Fig. 1. In the transmission system all the series elements are inductors with an impedance of 0.2. G1 Pa-=0.5 |-1.01 Vi= 1 20。 Fig. 1: Three Bus System 1- Find the Ybus 2- Find , , 0, SGi, and QG2 using Gauss-Seidel power flow (only two iterations are enough, first guess: V2=1.01 , Q2=0,V3-1) Find θ, Ill. g, SGI, and QG2 using Newton-Raphson power flow. (only two terations are enough, first guess: V2=1.0 l , Q2-0, V3=1) 3-

Consider a three bus power system shown in Fig. 1. In the transmission system all the series elements are inductors with an impedance of 0.2. G1 Pa-=0.5 |-1.01 Vi= 1…

Continue Reading Consider a three bus power system shown in Fig. 1. In the transmission system all the series elements are inductors with an impedance of 0.2. G1 Pa-=0.5 |-1.01 Vi= 1 20。 Fig. 1: Three Bus System 1- Find the Ybus 2- Find , , 0, SGi, and QG2 using Gauss-Seidel power flow (only two iterations are enough, first guess: V2=1.01 , Q2=0,V3-1) Find θ, Ill. g, SGI, and QG2 using Newton-Raphson power flow. (only two terations are enough, first guess: V2=1.0 l , Q2-0, V3=1) 3-

The position of a particle is r = [3t^3 – 2t)i – (4t^1/2 + t)j + (3t^2 – 2)k] m, where t is in seconds. Determine the magnitude of the particle’s velocity and acceleration when t = 3 s. The skateboard rider shown in the figure below leaves the ramp at a width an initial velocity V_A at 30 degree angle with the horizontal. If the rider strikes the ground at B, determine V_A and the time of the flight.

The position of a particle is r = [3t^3 - 2t)i - (4t^1/2 + t)j + (3t^2 - 2)k] m, where t is in seconds. Determine the magnitude of the…

Continue Reading The position of a particle is r = [3t^3 – 2t)i – (4t^1/2 + t)j + (3t^2 – 2)k] m, where t is in seconds. Determine the magnitude of the particle’s velocity and acceleration when t = 3 s. The skateboard rider shown in the figure below leaves the ramp at a width an initial velocity V_A at 30 degree angle with the horizontal. If the rider strikes the ground at B, determine V_A and the time of the flight.

There is an electric field of magnitude 150. N/C directed everywhere downward, near the surface of the Earth. What is the net electric charge on the Earth? You treat the Earth as a spherical conductor of radius 6371. km. What is the electrostatic potential at the Earth’s surface, if the potential is taken to be zero at infinity? Using any needed results from Problem 1 above, calculate the total energy associated with the electric charge or electric field of the Earth. HINT: You can treat the Earth as a charged capacitor.|

There is an electric field of magnitude 150. N/C directed everywhere downward, near the surface of the Earth. What is the net electric charge on the Earth? You treat the…

Continue Reading There is an electric field of magnitude 150. N/C directed everywhere downward, near the surface of the Earth. What is the net electric charge on the Earth? You treat the Earth as a spherical conductor of radius 6371. km. What is the electrostatic potential at the Earth’s surface, if the potential is taken to be zero at infinity? Using any needed results from Problem 1 above, calculate the total energy associated with the electric charge or electric field of the Earth. HINT: You can treat the Earth as a charged capacitor.|

Below is a two-stage vapor compression refrigeration system with R-134a as the working fluid. The system uses a direct contact heat exchanger to achieve intercooling. The evaporator has a refrigerating capacity of 50 kW and produces -28 C saturated vapor at its exit. In the first compressor stage, the refrigerant is compressed adiabatically to 5 bar, which is the pressure in the direct contact heat exchanger. Saturated vapor at 5 bar enters the second compressor stage and is compressed adiabatically to 10 bar. Each compressor stage has an isentropic efficiency of 90%. Saturated liquid enters each expansion valve. Determine: 1. Ratio of mass flow rates m?3 /m?1 2. Power input to each compressor 3. COP of system

Below is a two-stage vapor compression refrigeration system with R-134a as the working fluid. The system uses a direct contact heat exchanger to achieve intercooling. The evaporator has a refrigerating…

Continue Reading Below is a two-stage vapor compression refrigeration system with R-134a as the working fluid. The system uses a direct contact heat exchanger to achieve intercooling. The evaporator has a refrigerating capacity of 50 kW and produces -28 C saturated vapor at its exit. In the first compressor stage, the refrigerant is compressed adiabatically to 5 bar, which is the pressure in the direct contact heat exchanger. Saturated vapor at 5 bar enters the second compressor stage and is compressed adiabatically to 10 bar. Each compressor stage has an isentropic efficiency of 90%. Saturated liquid enters each expansion valve. Determine: 1. Ratio of mass flow rates m?3 /m?1 2. Power input to each compressor 3. COP of system

Evidencia 2 analisis del consumidor copia.docx

Nombre:  Matrícula:  Nombre del curso: Análisis Del Consumidor.Nombre del profesor:  Módulo: Módulo 2: El consumidor y el proceso de decisión de compraActividad: Evidencia 2.Fecha: 05/04/16Bibliografía: https://miscursos.tecmilenio.mx/webapps/blackboard/execute/content/file?cmd=view&content_id=_673338_1&course_id=_24036_1&framesetWrapped=true Objetivo: El objetivo de…

Continue Reading Evidencia 2 analisis del consumidor copia.docx