Elemental iodine (I2) is a solid at room temperature. What is the major attractive force that exists among different I2 molecules in the solid? A) London dispersion forces B) dipole-dipole rejections C) ionic-dipole interactions D) covalent-ionic interactions E) dipole-dipole attractions

Elemental iodine (I2) is a solid at room temperature. What is the major attractive force that exists among different I2 molecules in the solid? A) London dispersion forces B) dipole-dipole rejections C) ionic-dipole interactions D) covalent-ionic interactions E) dipole-dipole attractions

A) London dispersion forces
SUPPLY CHAIN MANAGEMENT AT BOSE CORPORATION Bose Corporation, headquartered in Framingham, Massachusetts, offers an excellent example of integrated supply chain management. Bose, a producer of audio premium speakers used in automobiles, high-fidelity systems, and consumer and commercial broadcasting systems, was founded in 1964 by Dr. Bose of MIT. Bose currently maintains plants in Massachusetts and Michigan as well as Canada, Mexico, and Ireland. Its purchasing organization, while decentralized, has some overlap that requires coordination between sites. It manages this coordination by using conference calls between managers, electronic communication, and joint problem solving. The company is moving toward single sourcing many of its 800 to 1,000 parts, which include corrugated paper, particle board and wood, plastic injected molded parts, fasteners, glues, woofers, and fabric. Some product components, such as woofers, are sourced overseas. For example, at the Hillsdale, Michigan, plant, foreign sourcing accounts for 20% of purchases, with the remainder of suppliers located immediately within the state of Michigan. About 35% of the parts purchased at this site are single sourced, with approximately half of the components arriving with no incoming inspection performed. In turn, Bose ships finished products directly to Delco, Honda, and Nissan and has a record of no missed deliveries. Normal lead time to customers is 60 working days, but Bose can expedite shipments in one week and airfreight them if necessary. The company has developed a detailed supplier performance system that measures on-time delivery, quality performance, technical improvements, and supplier suggestions. A report is generated twice a month from this system and sent to the supplier providing feedback about supplier performance. If there is a three-week trend of poor performance, Bose will usually establish a specific goal for improvement that the supplier must attain. Examples include 10% delivery improvement every month until 100% conformance is achieved, or 5% quality improvement until a 1% defect level is reached over a four-month period. In one case, a supplier sent a rejected shipment back to Bose without explanation and with no corrective action taken. When no significant improvement occurred, another supplier replaced the delinquent supplier. Bose has few written contracts with suppliers. After six months of deliveries without rejects, Bose encourages suppliers to apply for a certificate of achievement form, signifying that they are qualified suppliers. One of the primary criteria for gaining certification involves how well the supplier responds to corrective action requests. One of the biggest problems observed is that suppliers often correct problems on individual parts covered by a corrective action form without extending these corrective actions to other part families and applicable parts. Bose has adopted a unique system of marrying just-in-time (JIT) purchasing with global sourcing. Approximately half of the dollar value of Bose’s total purchases are made overseas, with the majority of the sourcing done in Asia. Because foreign sourcing does not support just-in-time deliveries, Bose “had to find a way to blend low inventory with buying from distant sources,” says the director of purchasing and logistics for Bose. Visualizing itself as a customer-driven organization, Bose now uses a sophisticated transportation system—what Bose’s manager of logistics calls “the best EDI system in the country.” Working closely with a national less-than-truckload carrier for the bulk of its domestic freight movements, including shipments arriving at a U.S. port from oversees, Bose implemented an electronic data interchange (EDI) system that does much more than simple tracking. The system operates close to real time and allows two-way communication between every one of the freight handler’s 230 terminals and Bose. Information is updated several times daily and is downloaded automatically, enabling Bose to perform shipping analysis and distribution channel modeling to achieve reliable lowest total cost scenarios. The company can also request removal from a terminal of any shipment that it must expedite with an air shipment. This state-of-the-art system provides a snapshot of what is happening on a daily basis and keeps Bose’s managers on top of everyday occurrences and decisions. Management proactively manages logistics time elements in pursuit of better customer service. The next step is to implement this system with all major suppliers rather than just with transportation suppliers. In the future, Bose plans to automate its entire materials system. Perhaps one of the most unique features of Bose’s procurement and logistics system is the development of JIT II. The basic premise of JIT II is simple: The person who can do the best job of ordering and managing inventory of a particular item is the supplier himself. Bose negotiated with each supplier to provide a full-time employee at the Bose plant who was responsible for ordering, shipping, and receiving materials from that plant, as well as managing on-site inventories of the items. This was done through an EDI connection between Bose’s plant and the supplier’s facility. Collocating suppliers and buyers was so successful that Bose is now implementing it at all plant locations. In fact, many other companies have also begun to implement collocation of suppliers. Assignment Questions The following assignment questions relate to ideas and concepts presented throughout this text. Answer some or all of the questions as directed by your instructor. 1. Discuss how the strategy development process might work at a company like Bose. 2. What should be the relationship between Bose’s supply management strategy and the development of its performance measurement system? 3. Why is purchased quality so important to Bose? 4. Can a just-in-time purchase system operate without total quality from suppliers? 5. Why can some components arrive at the Hillsdale, Michigan, plant with no incoming inspection required? 6. Discuss the reasons why Bose has a certificate of achievement program for identifying qualified suppliers. 7. Bose is moving toward single sourcing many of its purchased part requirements. Discuss why the company might want to do this. Are there any risks to that approach? 8. Discuss some of the difficulties a company like Bose might experience when trying to implement just-in-time purchasing with international suppliers. 9. Why does Bose have to source so much of its purchase requirements from offshore suppliers? 10. What makes the JIT II system at Bose unique? Why would a company pursue this type of system? 11. Why is it necessary to enter into a longer-term contractual arrangement when pursuing arrangements like the one Bose has with its domestic transportation carrier? 12. Why is it important to manage logistics time elements proactively when pursuing higher levels of customer service? 13. What role does information technology play at Bose? 14. What advantages do information technology systems provide to Bose that might not be available to a company that does not have these systems? 15. Why has Bose developed its supplier performance measurement system? 16. Do you think the performance measurement systems at Bose are computerized or manual? Why?

SUPPLY CHAIN MANAGEMENT AT BOSE CORPORATION Bose Corporation, headquartered in Framingham, Massachusetts, offers an excellent example of integrated supply chain management. Bose, a producer of audio premium speakers used in automobiles, high-fidelity systems, and consumer and commercial broadcasting systems, was founded in 1964 by Dr. Bose of MIT. Bose currently maintains plants in Massachusetts and Michigan as well as Canada, Mexico, and Ireland. Its purchasing organization, while decentralized, has some overlap that requires coordination between sites. It manages this coordination by using conference calls between managers, electronic communication, and joint problem solving. The company is moving toward single sourcing many of its 800 to 1,000 parts, which include corrugated paper, particle board and wood, plastic injected molded parts, fasteners, glues, woofers, and fabric. Some product components, such as woofers, are sourced overseas. For example, at the Hillsdale, Michigan, plant, foreign sourcing accounts for 20% of purchases, with the remainder of suppliers located immediately within the state of Michigan. About 35% of the parts purchased at this site are single sourced, with approximately half of the components arriving with no incoming inspection performed. In turn, Bose ships finished products directly to Delco, Honda, and Nissan and has a record of no missed deliveries. Normal lead time to customers is 60 working days, but Bose can expedite shipments in one week and airfreight them if necessary. The company has developed a detailed supplier performance system that measures on-time delivery, quality performance, technical improvements, and supplier suggestions. A report is generated twice a month from this system and sent to the supplier providing feedback about supplier performance. If there is a three-week trend of poor performance, Bose will usually establish a specific goal for improvement that the supplier must attain. Examples include 10% delivery improvement every month until 100% conformance is achieved, or 5% quality improvement until a 1% defect level is reached over a four-month period. In one case, a supplier sent a rejected shipment back to Bose without explanation and with no corrective action taken. When no significant improvement occurred, another supplier replaced the delinquent supplier. Bose has few written contracts with suppliers. After six months of deliveries without rejects, Bose encourages suppliers to apply for a certificate of achievement form, signifying that they are qualified suppliers. One of the primary criteria for gaining certification involves how well the supplier responds to corrective action requests. One of the biggest problems observed is that suppliers often correct problems on individual parts covered by a corrective action form without extending these corrective actions to other part families and applicable parts. Bose has adopted a unique system of marrying just-in-time (JIT) purchasing with global sourcing. Approximately half of the dollar value of Bose’s total purchases are made overseas, with the majority of the sourcing done in Asia. Because foreign sourcing does not support just-in-time deliveries, Bose “had to find a way to blend low inventory with buying from distant sources,” says the director of purchasing and logistics for Bose. Visualizing itself as a customer-driven organization, Bose now uses a sophisticated transportation system—what Bose’s manager of logistics calls “the best EDI system in the country.” Working closely with a national less-than-truckload carrier for the bulk of its domestic freight movements, including shipments arriving at a U.S. port from oversees, Bose implemented an electronic data interchange (EDI) system that does much more than simple tracking. The system operates close to real time and allows two-way communication between every one of the freight handler’s 230 terminals and Bose. Information is updated several times daily and is downloaded automatically, enabling Bose to perform shipping analysis and distribution channel modeling to achieve reliable lowest total cost scenarios. The company can also request removal from a terminal of any shipment that it must expedite with an air shipment. This state-of-the-art system provides a snapshot of what is happening on a daily basis and keeps Bose’s managers on top of everyday occurrences and decisions. Management proactively manages logistics time elements in pursuit of better customer service. The next step is to implement this system with all major suppliers rather than just with transportation suppliers. In the future, Bose plans to automate its entire materials system. Perhaps one of the most unique features of Bose’s procurement and logistics system is the development of JIT II. The basic premise of JIT II is simple: The person who can do the best job of ordering and managing inventory of a particular item is the supplier himself. Bose negotiated with each supplier to provide a full-time employee at the Bose plant who was responsible for ordering, shipping, and receiving materials from that plant, as well as managing on-site inventories of the items. This was done through an EDI connection between Bose’s plant and the supplier’s facility. Collocating suppliers and buyers was so successful that Bose is now implementing it at all plant locations. In fact, many other companies have also begun to implement collocation of suppliers. Assignment Questions The following assignment questions relate to ideas and concepts presented throughout this text. Answer some or all of the questions as directed by your instructor. 1. Discuss how the strategy development process might work at a company like Bose. 2. What should be the relationship between Bose’s supply management strategy and the development of its performance measurement system? 3. Why is purchased quality so important to Bose? 4. Can a just-in-time purchase system operate without total quality from suppliers? 5. Why can some components arrive at the Hillsdale, Michigan, plant with no incoming inspection required? 6. Discuss the reasons why Bose has a certificate of achievement program for identifying qualified suppliers. 7. Bose is moving toward single sourcing many of its purchased part requirements. Discuss why the company might want to do this. Are there any risks to that approach? 8. Discuss some of the difficulties a company like Bose might experience when trying to implement just-in-time purchasing with international suppliers. 9. Why does Bose have to source so much of its purchase requirements from offshore suppliers? 10. What makes the JIT II system at Bose unique? Why would a company pursue this type of system? 11. Why is it necessary to enter into a longer-term contractual arrangement when pursuing arrangements like the one Bose has with its domestic transportation carrier? 12. Why is it important to manage logistics time elements proactively when pursuing higher levels of customer service? 13. What role does information technology play at Bose? 14. What advantages do information technology systems provide to Bose that might not be available to a company that does not have these systems? 15. Why has Bose developed its supplier performance measurement system? 16. Do you think the performance measurement systems at Bose are computerized or manual? Why?

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Read the Wall Street Journal, The Economist, or any other major newspaper or weekly publication and select a single article or articles that (1) either report on interesting economic news that can be analyzed by the concepts or models taught in this course and/or (2) discusses one or more economic issues related to the concepts or models taught in this course. It is OK to use an online economics news article. Please cite your source. Useful Link: http://www.smc.edu/AcademicAffairs/Library/Pages/Citation-Style-Guidelines.aspx Write a FIVE TO SIX page essay analyzing the topic or critique the article from economic perspectives. Essay must be typed and double-spaced, (Times New Roman, font 12). The questions that you may address in this essay may include, but are not limited, to the following:
 What is the main economic issue? How is the economic issue related to the concepts or models that you have learned from this course? What sorts of arguments/opinions have been discussed? Do you agree or disagree with the analyses/opinions? Why? What argument would you, as an economist, make? The following is a suggested list of topics. This list is not exhaustive. INDUSTRY STUDY. For a specific industry, choose a current issue such as deregulation, foreign competition, and the impact of new technologies, mergers/takeovers, changing methods of competition, labor problems, or financial changes. COMPANY STUDY. Study the recent growth or decline of a particular company or its current position. This topic might include such points as the market structure within which the company grew and now operates, the elasticity of demand for its products, the degree of unionization, the cost structure (degree of fixed cost, economies of scale), the role of advertising, the degree of international competition, etc. INTERNATIONAL ISSUES. Possible topics are: current economic problems of a particular country, OPEC, the European Union, the U. S. trade deficit, protectionism, U. S. trade relations with Japan or other countries, economic development of a particular country, the World Trade Organization, etc. GOVERNMENT REGULATION. Analyze some particular government regulation or antitrust policy relative to a specific industry or company or analyze a current regulatory issue (environmental protection, OSHA, the FDA, etc.).

Read the Wall Street Journal, The Economist, or any other major newspaper or weekly publication and select a single article or articles that (1) either report on interesting economic news that can be analyzed by the concepts or models taught in this course and/or (2) discusses one or more economic issues related to the concepts or models taught in this course. It is OK to use an online economics news article. Please cite your source. Useful Link: http://www.smc.edu/AcademicAffairs/Library/Pages/Citation-Style-Guidelines.aspx Write a FIVE TO SIX page essay analyzing the topic or critique the article from economic perspectives. Essay must be typed and double-spaced, (Times New Roman, font 12). The questions that you may address in this essay may include, but are not limited, to the following:
 What is the main economic issue? How is the economic issue related to the concepts or models that you have learned from this course? What sorts of arguments/opinions have been discussed? Do you agree or disagree with the analyses/opinions? Why? What argument would you, as an economist, make? The following is a suggested list of topics. This list is not exhaustive. INDUSTRY STUDY. For a specific industry, choose a current issue such as deregulation, foreign competition, and the impact of new technologies, mergers/takeovers, changing methods of competition, labor problems, or financial changes. COMPANY STUDY. Study the recent growth or decline of a particular company or its current position. This topic might include such points as the market structure within which the company grew and now operates, the elasticity of demand for its products, the degree of unionization, the cost structure (degree of fixed cost, economies of scale), the role of advertising, the degree of international competition, etc. INTERNATIONAL ISSUES. Possible topics are: current economic problems of a particular country, OPEC, the European Union, the U. S. trade deficit, protectionism, U. S. trade relations with Japan or other countries, economic development of a particular country, the World Trade Organization, etc. GOVERNMENT REGULATION. Analyze some particular government regulation or antitrust policy relative to a specific industry or company or analyze a current regulatory issue (environmental protection, OSHA, the FDA, etc.).

Introduction UnitedHealth Group Incorporated is dedicated to introduce pioneering ideas, … Read More...
convincing writing (unlike this syllabus) is also an essential skill in any discipline. Thus, write a two-page, double-spaced paper analyzing one of the listed movies for scientific accuracy. You should outline the papers as follows. · Introduction: briefly summarize major plot points with emphasis on biological science claims. · Accuracies: Explain scientific claims made in the movie that represent accurate understanding of some scientific principle. Cite two places in the textbook that support their claims. · Inaccuracies: Explain leaps in scientific understanding made in the movie. Cite two places in the textbook that dispute their claim. · Impact on public perceptions. What impact do you think this movie has on public perceptions of the science? Positive or negative? Find 1 article online of any type that backs up your opinion.

convincing writing (unlike this syllabus) is also an essential skill in any discipline. Thus, write a two-page, double-spaced paper analyzing one of the listed movies for scientific accuracy. You should outline the papers as follows. · Introduction: briefly summarize major plot points with emphasis on biological science claims. · Accuracies: Explain scientific claims made in the movie that represent accurate understanding of some scientific principle. Cite two places in the textbook that support their claims. · Inaccuracies: Explain leaps in scientific understanding made in the movie. Cite two places in the textbook that dispute their claim. · Impact on public perceptions. What impact do you think this movie has on public perceptions of the science? Positive or negative? Find 1 article online of any type that backs up your opinion.

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one page summary for osh (Occupational safety and health (OSH) also commonly referred to as occupational health and safety (OHS) or workplace health and safety (WHS) is an area concerned with the safety, health and welfare of people engaged in work or employment.) . The questions are 1. What happened? 2. Why it happened? 3. What could be done so it does not happen again?

one page summary for osh (Occupational safety and health (OSH) also commonly referred to as occupational health and safety (OHS) or workplace health and safety (WHS) is an area concerned with the safety, health and welfare of people engaged in work or employment.) . The questions are 1. What happened? 2. Why it happened? 3. What could be done so it does not happen again?

one page summary for osh (Occupational safety and health (OSH) … Read More...
Rationale In order to communicate in a business environment, you need to know the language. The questions below are basic concepts that all business professionals should know. Instructions Answer each of the questions below in complete sentences. At the end of the answer include the source. This does not need to be in formal MLA documentation; the URL is sufficient. Remember that plagiarism results in a 0. Do not cut and paste. Write the answers in your own words. Be prepared to discuss the answers in class. What are the differences between the board of directors and the chief executive officer (CEO)? (4 points) List and define the four functions of management. Hint: The answer is in the textbook (8 points) List and define 7 departments that would be found at a mid-size helicopter manufacturing company. (14 points) What are the difference between public relations (PR), advertising, and marketing? (6 points) List and define 3 communication concerns in the aviation industry. (6 points) List the 3 major accounting reports and what they tell about the company. (6 points) What are the differences between stock, bonds, and mutual funds? (6 points) Formatting Memo Format – Use your personal letterhead and address the memo to me. THIS IS FOR A BUSINESS COMMUNICATION CLASS

Rationale In order to communicate in a business environment, you need to know the language. The questions below are basic concepts that all business professionals should know. Instructions Answer each of the questions below in complete sentences. At the end of the answer include the source. This does not need to be in formal MLA documentation; the URL is sufficient. Remember that plagiarism results in a 0. Do not cut and paste. Write the answers in your own words. Be prepared to discuss the answers in class. What are the differences between the board of directors and the chief executive officer (CEO)? (4 points) List and define the four functions of management. Hint: The answer is in the textbook (8 points) List and define 7 departments that would be found at a mid-size helicopter manufacturing company. (14 points) What are the difference between public relations (PR), advertising, and marketing? (6 points) List and define 3 communication concerns in the aviation industry. (6 points) List the 3 major accounting reports and what they tell about the company. (6 points) What are the differences between stock, bonds, and mutual funds? (6 points) Formatting Memo Format – Use your personal letterhead and address the memo to me. THIS IS FOR A BUSINESS COMMUNICATION CLASS

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Engineering Ethics Steve is updating the HVAC system in his house. The house is older and quite large. It will likely require new zoning as temperatures vary considerably throughout the home. His friend, Terry, owns a small HVAC company and tells Steve that new zoning is going to be difficult without doing major construction. However, there are some things that could be done to improve the temperature disparities throughout the house but “it will be far from perfect.” He quotes Steve a very favorable “friend discount” for the job. For good measure, Steve enlists a larger and more reputable firm to bid on the job as well. The company sends out their best project engineer, Bobby, to see if anything can be done to zone the house effectively and efficiently. Bobby spends the day at the house trying to come up with a creative solution for the problem. Bobby appears very committed to finding a solution and is genuinely excited and enthusiastic about the challenge. A week later Bobby returns with an elaborate and creative proposal for Steve. Bobby assures Steve that this solution will correct the temperature disparities and guarantees that he will work above and beyond to make sure the job is done to near perfection. Steve is very impressed with the design that Bobby has come up with but needs to think about it because the cost is more than he intended to spend. Steve tells his friend Terry about the proposal and Terry says that it is a “genius” idea. He also tells him that he will do the job using Bobby’s design for half the price. Steve did not sign any agreement with Bobby’s company; however, Bobby invested a tremendous amount of time and energy on the design. Bobby is very committed to his job and as has a tendency to trust people as evidenced by the fact that he let Steve make a copy of his detailed proposal that included his drawings. Bobby’s philosophy is to trust people “unless they give you a reason not to.” Using two moral theories, one of them being Kant’s deontology, try to determine the best course of action for Steve by constructing a brief ethical argument. Also, make sure to include the perspective of all three parties involved.

Engineering Ethics Steve is updating the HVAC system in his house. The house is older and quite large. It will likely require new zoning as temperatures vary considerably throughout the home. His friend, Terry, owns a small HVAC company and tells Steve that new zoning is going to be difficult without doing major construction. However, there are some things that could be done to improve the temperature disparities throughout the house but “it will be far from perfect.” He quotes Steve a very favorable “friend discount” for the job. For good measure, Steve enlists a larger and more reputable firm to bid on the job as well. The company sends out their best project engineer, Bobby, to see if anything can be done to zone the house effectively and efficiently. Bobby spends the day at the house trying to come up with a creative solution for the problem. Bobby appears very committed to finding a solution and is genuinely excited and enthusiastic about the challenge. A week later Bobby returns with an elaborate and creative proposal for Steve. Bobby assures Steve that this solution will correct the temperature disparities and guarantees that he will work above and beyond to make sure the job is done to near perfection. Steve is very impressed with the design that Bobby has come up with but needs to think about it because the cost is more than he intended to spend. Steve tells his friend Terry about the proposal and Terry says that it is a “genius” idea. He also tells him that he will do the job using Bobby’s design for half the price. Steve did not sign any agreement with Bobby’s company; however, Bobby invested a tremendous amount of time and energy on the design. Bobby is very committed to his job and as has a tendency to trust people as evidenced by the fact that he let Steve make a copy of his detailed proposal that included his drawings. Bobby’s philosophy is to trust people “unless they give you a reason not to.” Using two moral theories, one of them being Kant’s deontology, try to determine the best course of action for Steve by constructing a brief ethical argument. Also, make sure to include the perspective of all three parties involved.

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xposure Evaluation – Single substance, different exposure time, different concentrations: 3- A person is working in a factory producing. This person is exposure to different concentrations of Toluene with different exposures time. The results of a personal sampling in an 8-hour shift is shown here: Exposure Time Concentration 3 hr. 35 min 790 mg/m^3 43 min 27 ppm 3.70 hr. 800 mg/m^3 What is this worker’s time weighted average of exposure in mg/m^3? Is the company in compliance with the OSHA requirement? 6- Phenyl ether can be used in soap factories as fragrance. A worker is exposed to this material during 9-hour shift and the exposure information is given in the following table: Exposure Time Concentration 1 hr. 45 min 4×〖10〗^(-6 ) mg/〖cm〗^3 2 hr. 5 min 7×〖10〗^(-6 ) mg/〖cm〗^3 65 min 3×〖10〗^(-3 ) mg/L Remaining Time 7.5 mg/m^3 What is this worker’s time weighted average of exposure in mg/m^3? Is the company in compliance with the OSHA requirement? 7- One of the major ingredients of insect repellents is Naphthalene. Consider a situation in which a worker is exposed to this material. The exposure time and concentration is given in a table below: Exposure Time Concentration 275 min 12 ppm 40 min 5 ppm 165 min 10 ppm What is this worker’s time weighted average of exposure? Is the condition hazardous? Exposure Evaluation – Multiple substance, equal exposure time, constant concentrations: 1- A person is exposed to the vapors of Benzene and Ethyl alcohol. Tests show that the concentration of Benzene is 1 ppm and Ethyl alcohol is 450 ppm. What is the threshold limit value of the mix? Is this person at risk? 6- Several workers at a rubber and leather manufacturing company are exposed to vapors of Vinyl chloride, Toluene and Xylene with concentration of 0.2 ppm, 135 ppm 200 mg/m^3 respectively. What is the threshold limit value of the mix? Are the employees at risk? 7- Several workers exposed to vapors of Ammonia, Arsine, Chloroform and Acetone with concentration of 12 ppm, 0.04 mg/m^3, 15 ppm, and 570 mg/m^3 respectively. What is the threshold limit value of the mix? Are the employees at risk?

xposure Evaluation – Single substance, different exposure time, different concentrations: 3- A person is working in a factory producing. This person is exposure to different concentrations of Toluene with different exposures time. The results of a personal sampling in an 8-hour shift is shown here: Exposure Time Concentration 3 hr. 35 min 790 mg/m^3 43 min 27 ppm 3.70 hr. 800 mg/m^3 What is this worker’s time weighted average of exposure in mg/m^3? Is the company in compliance with the OSHA requirement? 6- Phenyl ether can be used in soap factories as fragrance. A worker is exposed to this material during 9-hour shift and the exposure information is given in the following table: Exposure Time Concentration 1 hr. 45 min 4×〖10〗^(-6 ) mg/〖cm〗^3 2 hr. 5 min 7×〖10〗^(-6 ) mg/〖cm〗^3 65 min 3×〖10〗^(-3 ) mg/L Remaining Time 7.5 mg/m^3 What is this worker’s time weighted average of exposure in mg/m^3? Is the company in compliance with the OSHA requirement? 7- One of the major ingredients of insect repellents is Naphthalene. Consider a situation in which a worker is exposed to this material. The exposure time and concentration is given in a table below: Exposure Time Concentration 275 min 12 ppm 40 min 5 ppm 165 min 10 ppm What is this worker’s time weighted average of exposure? Is the condition hazardous? Exposure Evaluation – Multiple substance, equal exposure time, constant concentrations: 1- A person is exposed to the vapors of Benzene and Ethyl alcohol. Tests show that the concentration of Benzene is 1 ppm and Ethyl alcohol is 450 ppm. What is the threshold limit value of the mix? Is this person at risk? 6- Several workers at a rubber and leather manufacturing company are exposed to vapors of Vinyl chloride, Toluene and Xylene with concentration of 0.2 ppm, 135 ppm 200 mg/m^3 respectively. What is the threshold limit value of the mix? Are the employees at risk? 7- Several workers exposed to vapors of Ammonia, Arsine, Chloroform and Acetone with concentration of 12 ppm, 0.04 mg/m^3, 15 ppm, and 570 mg/m^3 respectively. What is the threshold limit value of the mix? Are the employees at risk?

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