Review Questions pgs. 124-125‚ #1-23 (odd) 1. b 3. c 5. Wien’s law explains that objects of different temperatures emit spectra that peak at different wavelengths. Hotter objects emit shorter wavelengths‚ thus appearing bluer‚ whilst colder objects emit longer wavelengths‚ appearing redder. A star’s surface temperature can be deciphered using this method by seeing its color and surmising the amount of heat it’s giving off. 7. Wien’s law states that the peak of the emission spectrum
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Chapter 3 Module Review Questions 4/17/2012 1. Which features of organizations do managers need to know about to build and use information systems successfully? What is the impact of information systems on organizations? * Define an organization and compare the technical definition of organizations with the behavioral definition. The technical definition of an organization is a stable‚ formal social structure that takes resources from the environment and develops them to outputs. The
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Chapter 25 Production and Growth This chapter examines factors that contribute to long run economic growth. As you read the chapter‚ Compare US economic growth and living standards with other countries. -The growth rate was not the highest‚ however the United states did actually have one of the highest standards of living compared to other countries. Outline major factors that lead to growth (include definitions‚ description or example) and for each‚ list government policies that may encourage
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Chapter 1 • Archaeoastronomy and the Sun 3 Sites (Newgrange‚ Sundagger‚ Stonehenge) Newgrange’s roofbox is aligned to the winter solstice sunrise 2) the alignment of the tome likely reflects a belief in rebirth or reincarnation • The Sundagger of Chaco Canyon (~1000 AD) 1) On the summit of Fajada Butte in New Mexico‚ 2 spiral carvings were found behind 3 stone slabs 2) At noon on the solstices and equinoxes‚ the Sundagger exhibits 2 beams of sunlight which either bisect or frame the spirals
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What is the difference between leading and managing a project? Leading involves recognizing and communicating the need to change course and direction of the project‚ aligning people to this new direction‚ and motivating the team to overcome obstacles to achieve the new objectives. Managing is about formulating plans and objectives‚ designing procedures to achieve those objectives‚ monitoring progress‚ and taking corrective action. Managing is about putting out fires and maintaining the course
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NT1210 Introduction to Networking Unit 2: Chapter 2‚ Introduction to Computer Networking 1 Objectives Identify the major needs and stakeholders for computer networks and network applications. Identify the classifications of networks and how they are applied to various types of enterprises. Explain the functionality and use of typical network protocols. Use preferred techniques and necessary tools to troubleshoot common network problems. 2 Objectives Define a computer network. Identify
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Final Exam Review Using Table 10-1‚ review default port numbers used commonly with TCP and UDP purposes HTTP TCP Port 80 – used by web browsers and web servers Telnet TCP Port 23 – used for terminal emulation SSH TCP Port 22 – used for secure terminal emulation FTP TCP Port 20‚ 21 – used for file transfer DNS UDP Port 53 – used for name resolution SMTP TCP Port 25 – used to send and receive email POP3 TCP Port 110 – another email protocol IMAP TCP Port 143 – another email protocol SSL TCP
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Answer These Questions 1. Which of the following types of LANs was a competitor of Ethernet LANs from the earliest days of wired LANs in the 1980s and into the 1990s? a. ATM b. FDDI c. Token Ring d. Metro Ethernet 3. Which of the following speeds are not defined as a speed by some Ethernet LAN standard? a. 1 Gbps b. 4 Gbps c. 10 Gbps d. 40 Gbps 5. A campus LAN drawing shows hundreds of user devices cabled to LAN switches on various floors of a building. The per-floor edge switches
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1) Why are information systems (IS) essential in organizations? Information systems are the modern approach to data organization. It allows an effective and efficient way to store‚ modify‚ retrieve and manipulate data and information for a specific business or organization. 2) Why do systems analysts need to know who the stakeholders are in the organization? One of the major task and responsibilities of the system analyst is to bridge the connection of all the stakeholders in the organization
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Fred Bear MAIR 1449.02 3-24-11 R.Q. Unit 9 (E.B.) 1. What is magnetism? When two pieces of iron are attracted to each other by physical means or electrical means. 2. Torque is A. Strength that a motor produces by turning. 3. A magnetic field is D. All the above. 4. True or False: A permanent magnet is a piece of material that has been magnetized and can hold its magnetic strength for a reasonable length of time. True. 5. How is an electromagnet produced
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