You have had the unique opportunity to develop a career plan in this academic program. By determining career goals and objectives, you should have become insightful and capable of assessing your current skills and abilities and their respective usefulness in attaining that ideal position. According to your plan, what training and education may be required before advancement is possible with respect to your future plans? What is the biggest obstacle you face in search of success?

You have had the unique opportunity to develop a career plan in this academic program. By determining career goals and objectives, you should have become insightful and capable of assessing your current skills and abilities and their respective usefulness in attaining that ideal position. According to your plan, what training and education may be required before advancement is possible with respect to your future plans? What is the biggest obstacle you face in search of success?

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EXPERIMENT 6 FET CHARACTERISTIC CURVES ________________________________________ Bring a diskette to save your data. ________________________________________ OBJECT: The objective of this lab is to investigate the DC characteristics and operation of a field effect transistor (FET). The FET recommended to be used in this lab is 2N5486 n-channel FET. • Gathering data for the DC characteristics ________________________________________ APPARATUS: Dual DC Power Supply, Voltmeter, and 1k resistors, 2N5486 N-Channel FET. ________________________________________ THEORY: A JFET (Junction Field Effect Transistor) is a three terminal device (drain, source, and gate) similar to the BJT. The difference between them is that the JFET is a voltage controlled constant current device, whereas BJT is a current controlled current source device. Whereas for BJT the relationship between an output parameter, iC, and an input parameter, iB, is given by a constant , the relationship in JFET between an output parameter, iD, and an input parameter, vGS, is more complex. PROCEDURE: Measuring ID versus VDS (Output Characteristics) 1. Build the circuit shown below. 2. Obtain the output characteristics i.e. ID versus VDS. a. Set VGS = 0. Vary the voltage across drain (VDS) from 0 to 8 V with steps of 1 V and measure the corresponding drain current (ID). b. Repeat the procedure for different values of VGS. (0V, -0.5V, -1V, -1.5V, -2V, -2.5V, -3.0V, -3.5V, -4.0V). 3. Record the values in Table 1 and plot the graph ID vs. VGS. VGS 0 -0.5 -1.0 -1.5` -2.0 -2.5 -3.0 -3.5 -4.0 VDS ID ID ID ID ID ID ID ID ID 0 0 0.002mA 0.002mA 0.002mA 0.002mA 0.002mA 0.002mA 0.002mA 0mA 1 0 0.7 mA 0.7 mA 0.66 mA 0.6 mA 0.6 mA 0.5 0.1mA 0mA 2 0 1.5 mA 1.3 mA 1.3mA 1.2 mA 1.1 mA 0.7 0.1mA 0mA 3 0 2.1 mA 2.6 mA 1.9 mA 1.8 mA 1.5 mA 0.8 mA 0.1mA 0mA 4 0 2.7 mA 2.6 mA 2.5 mA 2.4 mA 1.7 mA 0.8 mA 0.1mA 0mA 5 0 3.4 mA 3.3 mA 3.1 mA 2.8 mA 1.8 mA 0.9 mA 0.1mA 0mA 6 0 4.1 mA 3.4 mA 3.7 mA 3.2 mA 1.9 mA 0.9 mA 0.1mA 0mA 7 0 4.7 mA 4.5 mA 4.2 mA 3.4 mA 1.9 mA 0.9 mA 0.1mA 0mA 8 0 5.3 mA 5.1 mA 6.6 mA 3.5 mA 2.0 mA 0.9 mA 0.1mA 0mA Table 1. vds=0:8; id=[0 6.2e-3 9.7e-3 11.3e-3 11.9e-3 12.2e-3 12.3e-3 12.3e-3 12.32e-3]; plot(vds,id);grid on;hold on id2=[0 5.23e-3 8.05e-3 9.15e-3 9.57e-3 9.77e-3 9.88e-3 9.9e-3 9.92e-3]; plot(vds,id2);grid on;hold on id3=[0 4.29e-3 6.41e-3 7.17e-3 7.46e-3 7.60e-3 7.67e-3 7.73e-3 7.76e-3]; plot(vds,id3);grid on;hold on ________________________________________ Measuring ID versus VGS (Transconductance Characteristics) 1. For the same circuit, obtain the transconductance characteristics. i.e. ID versus VGS. a. Set a particular value of voltage for VDS, i.e. 5V. Start with a gate voltage VGS of 0 V, and measure the corresponding drain current (ID). b. Then decrease VGS in steps of 0.5 V until VGS is -4V. c. At each step record the drain current. VDS = 5 V VGS ID 0 3.42 mA -0.5 3.36 mA -1.00 3.27 mA -1.50 3.12 mA -2.00 2.79 mA -2.50 1.84 mA -3.00 0.71 mA -3.50 0.11 mA -4.00 0 mA Table 2. 2. Plot the graph with ID versus VGS using Excel, MATLAB, or some other program. Discussion Questions—Make sure you answer the following questions in your discussion. Use all of the data obtained to answer the following questions: 1. Discuss the output and transconductance curves obtained in lab? Are they what you expected? 2. Are the output characteristics spaced evenly? Should they be? 3. What are the applications of a JFET?

EXPERIMENT 6 FET CHARACTERISTIC CURVES ________________________________________ Bring a diskette to save your data. ________________________________________ OBJECT: The objective of this lab is to investigate the DC characteristics and operation of a field effect transistor (FET). The FET recommended to be used in this lab is 2N5486 n-channel FET. • Gathering data for the DC characteristics ________________________________________ APPARATUS: Dual DC Power Supply, Voltmeter, and 1k resistors, 2N5486 N-Channel FET. ________________________________________ THEORY: A JFET (Junction Field Effect Transistor) is a three terminal device (drain, source, and gate) similar to the BJT. The difference between them is that the JFET is a voltage controlled constant current device, whereas BJT is a current controlled current source device. Whereas for BJT the relationship between an output parameter, iC, and an input parameter, iB, is given by a constant , the relationship in JFET between an output parameter, iD, and an input parameter, vGS, is more complex. PROCEDURE: Measuring ID versus VDS (Output Characteristics) 1. Build the circuit shown below. 2. Obtain the output characteristics i.e. ID versus VDS. a. Set VGS = 0. Vary the voltage across drain (VDS) from 0 to 8 V with steps of 1 V and measure the corresponding drain current (ID). b. Repeat the procedure for different values of VGS. (0V, -0.5V, -1V, -1.5V, -2V, -2.5V, -3.0V, -3.5V, -4.0V). 3. Record the values in Table 1 and plot the graph ID vs. VGS. VGS 0 -0.5 -1.0 -1.5` -2.0 -2.5 -3.0 -3.5 -4.0 VDS ID ID ID ID ID ID ID ID ID 0 0 0.002mA 0.002mA 0.002mA 0.002mA 0.002mA 0.002mA 0.002mA 0mA 1 0 0.7 mA 0.7 mA 0.66 mA 0.6 mA 0.6 mA 0.5 0.1mA 0mA 2 0 1.5 mA 1.3 mA 1.3mA 1.2 mA 1.1 mA 0.7 0.1mA 0mA 3 0 2.1 mA 2.6 mA 1.9 mA 1.8 mA 1.5 mA 0.8 mA 0.1mA 0mA 4 0 2.7 mA 2.6 mA 2.5 mA 2.4 mA 1.7 mA 0.8 mA 0.1mA 0mA 5 0 3.4 mA 3.3 mA 3.1 mA 2.8 mA 1.8 mA 0.9 mA 0.1mA 0mA 6 0 4.1 mA 3.4 mA 3.7 mA 3.2 mA 1.9 mA 0.9 mA 0.1mA 0mA 7 0 4.7 mA 4.5 mA 4.2 mA 3.4 mA 1.9 mA 0.9 mA 0.1mA 0mA 8 0 5.3 mA 5.1 mA 6.6 mA 3.5 mA 2.0 mA 0.9 mA 0.1mA 0mA Table 1. vds=0:8; id=[0 6.2e-3 9.7e-3 11.3e-3 11.9e-3 12.2e-3 12.3e-3 12.3e-3 12.32e-3]; plot(vds,id);grid on;hold on id2=[0 5.23e-3 8.05e-3 9.15e-3 9.57e-3 9.77e-3 9.88e-3 9.9e-3 9.92e-3]; plot(vds,id2);grid on;hold on id3=[0 4.29e-3 6.41e-3 7.17e-3 7.46e-3 7.60e-3 7.67e-3 7.73e-3 7.76e-3]; plot(vds,id3);grid on;hold on ________________________________________ Measuring ID versus VGS (Transconductance Characteristics) 1. For the same circuit, obtain the transconductance characteristics. i.e. ID versus VGS. a. Set a particular value of voltage for VDS, i.e. 5V. Start with a gate voltage VGS of 0 V, and measure the corresponding drain current (ID). b. Then decrease VGS in steps of 0.5 V until VGS is -4V. c. At each step record the drain current. VDS = 5 V VGS ID 0 3.42 mA -0.5 3.36 mA -1.00 3.27 mA -1.50 3.12 mA -2.00 2.79 mA -2.50 1.84 mA -3.00 0.71 mA -3.50 0.11 mA -4.00 0 mA Table 2. 2. Plot the graph with ID versus VGS using Excel, MATLAB, or some other program. Discussion Questions—Make sure you answer the following questions in your discussion. Use all of the data obtained to answer the following questions: 1. Discuss the output and transconductance curves obtained in lab? Are they what you expected? 2. Are the output characteristics spaced evenly? Should they be? 3. What are the applications of a JFET?

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compare and contrast between to France and Greece, on the basis of their economic, employment, population, communications, and transportation

compare and contrast between to France and Greece, on the basis of their economic, employment, population, communications, and transportation

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1 Before-class Preparation: Project Management Use the following questions to guide your reading and preparation for the iRAT/tRAT quiz. 1. Pre-lecture reading: Read the Textbook Chapter 7 from page 59 to page 63 “Step 3: Plan and manage the project”. 1) What is the three-part basic sequence of project management activities? 2) Fill in the blanks. During the “Plan” activity, a schedule shows will work on issues and materials will be applied to task? 3) Fill in the blank. During the “Assess” activity, periodic help keep team and customers informed of the state of the project. 2. Pre-lecture reading: Read the handout “Project Management – Creating a Project Schedule”. 1) What are the three aspects that need to be addressed when planning a project? 2) What are the two ways of presenting a WBS? Are task dependencies considered when creating a WBS? 3) In a network diagram, why do some tasks have to be completed in a specific order? What is the predecessor(s) of a task? 4) In a Gantt chart, what information can be derived from the “bar” for each task? What about the arrows? 5) What is a critical path? How to determine the total duration of a project? In order to reduce the project duration, should tasks on the critical path get additional resources or tasks not on the critical path? 3. Pre-lecture homework: answer all questions above. First copy each question then write down the answer. Submit the homework to Blackboard and also bring in the completed homework to the RAT quiz to use as a cheat sheet.

1 Before-class Preparation: Project Management Use the following questions to guide your reading and preparation for the iRAT/tRAT quiz. 1. Pre-lecture reading: Read the Textbook Chapter 7 from page 59 to page 63 “Step 3: Plan and manage the project”. 1) What is the three-part basic sequence of project management activities? 2) Fill in the blanks. During the “Plan” activity, a schedule shows will work on issues and materials will be applied to task? 3) Fill in the blank. During the “Assess” activity, periodic help keep team and customers informed of the state of the project. 2. Pre-lecture reading: Read the handout “Project Management – Creating a Project Schedule”. 1) What are the three aspects that need to be addressed when planning a project? 2) What are the two ways of presenting a WBS? Are task dependencies considered when creating a WBS? 3) In a network diagram, why do some tasks have to be completed in a specific order? What is the predecessor(s) of a task? 4) In a Gantt chart, what information can be derived from the “bar” for each task? What about the arrows? 5) What is a critical path? How to determine the total duration of a project? In order to reduce the project duration, should tasks on the critical path get additional resources or tasks not on the critical path? 3. Pre-lecture homework: answer all questions above. First copy each question then write down the answer. Submit the homework to Blackboard and also bring in the completed homework to the RAT quiz to use as a cheat sheet.

INFO 474 Advanced Network & Security Network Monitoring Assignment – HTTP (SSL/TLS) Messages Objective: Wireshark is a powerful Network Protocol Analyzer and is very useful in understanding data communications and networks. It was named as one of the Top 5 tools that every Network Administrator and CISO should know of and/or learn to use. At the completion of this assignment you will have a better understanding of the purpose and usefulness of Network Monitoring for HTTP messages. You will accomplish this by performing the basic tasks below. Tasks: 1. Create a filter to filter for HTTP traffic to and from your machine. (Screenshot) 2. Explain what the functions Get, Request, Response, POST and HTTP Payload are responsible for. (1 paragraph) 3. Discuss HTTP version. i.e., differences in HTTP 1.0 versus HTTP 1.1(1 paragraphs) 4. Log in to a secure website, capture TLS traffic, and discuss the packet. Pay attention to the OCSP protocol and discuss in detail what it is used for, and the client/server handshake. (Screenshot & 2 paragraphs) 5. Explain the importance of using a recognizable Certificate Authority. Explain the benefits of using an EV SSL Certificate. Steps: Download and install Wireshark Protocol Analyzer Monitoring software from the URL below. After installation, choose the correct NIC, create a new capture, and complete the tasks assigned. Wireshark http://www.wireshark.org/ To create a new capture in Wireshark, choose the adapter from the Interface List on the home page. Ensure you are using the correct adapter by viewing the IP and/or MAC address, which can be found under control panel or by using the command prompt. Deliverables: This assignment should be completed and screenshots showing packets discussed submitted. ALSO, one screenshot of your PCs IP address and network configuration information should be submitted. This assignment should be emailed to me no later than 5pm, Wednesday, February 4, 2015 and bring a hard copy to class. No late assignments accepted! Grading: This assignment will equal 1 homework grade and is worth 100pts. Resources: 5 min video for Wireshark – http://wiresharkdownloads.riverbed.com/video/wireshark/introduction-to-wireshark/ *Additional items to consider: Follow TCP streams (right click on a TCP packet), take note of bad packets (color coded), log into an unsecure site (if you can find one), capture the hexadecimal password and convert that to a string. Going above and beyond will be rewarded …and have fun. I don’t expect you to be an expert but it’s good to have an understanding of Network monitoring and troubleshooting connections, and also very useful to know.

INFO 474 Advanced Network & Security Network Monitoring Assignment – HTTP (SSL/TLS) Messages Objective: Wireshark is a powerful Network Protocol Analyzer and is very useful in understanding data communications and networks. It was named as one of the Top 5 tools that every Network Administrator and CISO should know of and/or learn to use. At the completion of this assignment you will have a better understanding of the purpose and usefulness of Network Monitoring for HTTP messages. You will accomplish this by performing the basic tasks below. Tasks: 1. Create a filter to filter for HTTP traffic to and from your machine. (Screenshot) 2. Explain what the functions Get, Request, Response, POST and HTTP Payload are responsible for. (1 paragraph) 3. Discuss HTTP version. i.e., differences in HTTP 1.0 versus HTTP 1.1(1 paragraphs) 4. Log in to a secure website, capture TLS traffic, and discuss the packet. Pay attention to the OCSP protocol and discuss in detail what it is used for, and the client/server handshake. (Screenshot & 2 paragraphs) 5. Explain the importance of using a recognizable Certificate Authority. Explain the benefits of using an EV SSL Certificate. Steps: Download and install Wireshark Protocol Analyzer Monitoring software from the URL below. After installation, choose the correct NIC, create a new capture, and complete the tasks assigned. Wireshark http://www.wireshark.org/ To create a new capture in Wireshark, choose the adapter from the Interface List on the home page. Ensure you are using the correct adapter by viewing the IP and/or MAC address, which can be found under control panel or by using the command prompt. Deliverables: This assignment should be completed and screenshots showing packets discussed submitted. ALSO, one screenshot of your PCs IP address and network configuration information should be submitted. This assignment should be emailed to me no later than 5pm, Wednesday, February 4, 2015 and bring a hard copy to class. No late assignments accepted! Grading: This assignment will equal 1 homework grade and is worth 100pts. Resources: 5 min video for Wireshark – http://wiresharkdownloads.riverbed.com/video/wireshark/introduction-to-wireshark/ *Additional items to consider: Follow TCP streams (right click on a TCP packet), take note of bad packets (color coded), log into an unsecure site (if you can find one), capture the hexadecimal password and convert that to a string. Going above and beyond will be rewarded …and have fun. I don’t expect you to be an expert but it’s good to have an understanding of Network monitoring and troubleshooting connections, and also very useful to know.

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5. Provide a brief discussion with supporting evidence to the following inquiry: With the responsibility of overseeing career development processes, how does management equip employees with skills that impact their performance in an efficient and effective manner?

5. Provide a brief discussion with supporting evidence to the following inquiry: With the responsibility of overseeing career development processes, how does management equip employees with skills that impact their performance in an efficient and effective manner?

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1- At NYIT in 1993 a 100ton electric A/C system (electric driven compressor) with a 100 ton natural gas absorption system. Electric then was$. 12/kwh and the natural gas unit was expected to have the energy cost. Other date is listed below. Make a financial analysis and decide if a replacement is worth it. Lifespan of electric system=10 years and salvage S=0; Lifespan of the absorption system is 20 years and S=0(even after 10years) Energy savings = 50% of electric; Maintenance Cost/yr, gas $6000/yr: Initial cost of electric=0 (sunk cost), gas $6000 and the installation is additional $20,000. Gov’t funding is 30% of the initial cost. The may assume any other unknown factors. On a quantitative basis is the switch justified. Work the problem out either on a present value basis for 10 years or annuitized cost per year for the same time period. 2- On a qualitative basis the decision may be affected by: a. Lack f proper maintenance and staff. b. Warnings from other consumers that the system is “trouble”. They were told that JFK A/C system converted to gas then switched to electric. c. The unit required much more control devices that were not that reliable as electric. d. The new system would be difficult to computerize and automate. e. Unknown problems may arise as the unit was not that well time tested. With all this in mind, how would the decision would be affected? Keep in mind that inflation is a plus for the gas system. 3- a. A brick wall 4” facebrick (water-proof), 4 back brick is to have a 2” layer polyurethane (1/k=6.75) added. Find the percentage in drop of heat loss. b. These walls currently lose in heating $12000/yr. How much can be by this insulations? c. For a pay back period of 4 years what is the maximum upfront cost? 4- a. A room is kept in summer at 75F and 70RH (muggy day) what % of people will be uncomfortable? (Hint-the center of the comfort zone is 100% comfort at the edge it drops to 10%. Use extrapolation to find the % occupants uncomfortable) b. How is clothing entered in the comfort? c. How is clothing entered in the comfort? d. Why are heated buildings in winter often too dry (low humidity) 5- a. A room of 10,000cu ft is at 40F and is to be heated to 70F in one (1) hour. The walls lose an average of 20BTU/min. Compute the minimum wattage of the heater. b. The heater produces heat at a constant temperature of 249F (700R). Consider the “sink” temperature at 70F (550). What % of the heat supplied is useful? Density air=.075 #/cu ft, Cp = .24BTU/#-F What % of the heat supplied is useful? Density air=.075 #/cu ft, Cp = .24BTU/#-F 6- Submit the cooling load analysis of your room either in house or apartment. This is essentially the same problem assigned for home work and can be submitted here. You can also use the form in the text which is simpler. 7- The 10/18/10 issue of the Wall street Journal had a lengthy series of articles on “Electric Cars” in which some experts claim the vehicle is not economic until gas gets to $9-10 a gallon. How would you support this analysis? Note this analysis also includes “green” effects since most of these cars re powered by electric generated by coal. However the writers ignored the effect that they can be powered at night when electric is cheap and power plants do not have to cut out boilers — a big, big energy waste.

1- At NYIT in 1993 a 100ton electric A/C system (electric driven compressor) with a 100 ton natural gas absorption system. Electric then was$. 12/kwh and the natural gas unit was expected to have the energy cost. Other date is listed below. Make a financial analysis and decide if a replacement is worth it. Lifespan of electric system=10 years and salvage S=0; Lifespan of the absorption system is 20 years and S=0(even after 10years) Energy savings = 50% of electric; Maintenance Cost/yr, gas $6000/yr: Initial cost of electric=0 (sunk cost), gas $6000 and the installation is additional $20,000. Gov’t funding is 30% of the initial cost. The may assume any other unknown factors. On a quantitative basis is the switch justified. Work the problem out either on a present value basis for 10 years or annuitized cost per year for the same time period. 2- On a qualitative basis the decision may be affected by: a. Lack f proper maintenance and staff. b. Warnings from other consumers that the system is “trouble”. They were told that JFK A/C system converted to gas then switched to electric. c. The unit required much more control devices that were not that reliable as electric. d. The new system would be difficult to computerize and automate. e. Unknown problems may arise as the unit was not that well time tested. With all this in mind, how would the decision would be affected? Keep in mind that inflation is a plus for the gas system. 3- a. A brick wall 4” facebrick (water-proof), 4 back brick is to have a 2” layer polyurethane (1/k=6.75) added. Find the percentage in drop of heat loss. b. These walls currently lose in heating $12000/yr. How much can be by this insulations? c. For a pay back period of 4 years what is the maximum upfront cost? 4- a. A room is kept in summer at 75F and 70RH (muggy day) what % of people will be uncomfortable? (Hint-the center of the comfort zone is 100% comfort at the edge it drops to 10%. Use extrapolation to find the % occupants uncomfortable) b. How is clothing entered in the comfort? c. How is clothing entered in the comfort? d. Why are heated buildings in winter often too dry (low humidity) 5- a. A room of 10,000cu ft is at 40F and is to be heated to 70F in one (1) hour. The walls lose an average of 20BTU/min. Compute the minimum wattage of the heater. b. The heater produces heat at a constant temperature of 249F (700R). Consider the “sink” temperature at 70F (550). What % of the heat supplied is useful? Density air=.075 #/cu ft, Cp = .24BTU/#-F What % of the heat supplied is useful? Density air=.075 #/cu ft, Cp = .24BTU/#-F 6- Submit the cooling load analysis of your room either in house or apartment. This is essentially the same problem assigned for home work and can be submitted here. You can also use the form in the text which is simpler. 7- The 10/18/10 issue of the Wall street Journal had a lengthy series of articles on “Electric Cars” in which some experts claim the vehicle is not economic until gas gets to $9-10 a gallon. How would you support this analysis? Note this analysis also includes “green” effects since most of these cars re powered by electric generated by coal. However the writers ignored the effect that they can be powered at night when electric is cheap and power plants do not have to cut out boilers — a big, big energy waste.

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1. (2 marks total) a. Multiply 109 x 309 b. Divide 1988 by 16 exactly 2. (4 marks total) a. Write 2/11 as a decimal to 2 decimal places b. Calculate 35% of 62 c. Add 103/4 to 92/3 d. Subtract 79.04 from 115.225 giving your answer correct to 2 decimal places 3. Circle the fractions in the list which are equivalent to 0.80 (2 marks) 2/7 32/40 8/10 8/20 8/25 9/24 36/45 40/50 4. Write the numerical value of: 3-3 (2 marks total) 5. Simplify z + 67 = 3z + 33 (1 mark total) 6. Solve to 1 decimal place 3y – 34 = 2y + 89 (1 mark total) 7. Solve the following equations to 2 decimal places (3 marks total) a. 37x + 1 = 35 b. 27 – a = 7.45 c. 3(y + 2) = 14 8. A 7-sided polygon is called a Heptagon. (3 marks total) a. What is the total of a Heptagon’s interior angles? b. If the Heptagon is regular (all angles the same), calculate the size of each interior angle to 2 decimal places. 9. Calculate the size of angle a and angle b. (2 mark total) 10. How many centilitres are there in 1.25 litres? (1 mark total) 11. The diagram below shows a stone carving with a hole on it; determine its volume (not including hole), if its thickness is 8 cm. Give your answer in cm3 to 2 decimal points. Assume π = 3.14 (6 marks total) 12. The diagram below shows a piece of alloy plate with a hole in it made from aluminium, copper and magnesium with a mass ratio of 35:3:2. Calculate the following to 2 decimal places. All measurements are in cm. (7 marks total) a. Using the formula A = 1/2(a+b)h calculate the height of the shape below. b. The volume of the solid part (not including the hole) of the shape below to 3 decimal places if it was 0.25cm thick. c. The mass of each material if the total mass of the plate is 62 kg. 10 cm Hole dia = 3 cm Cross sectional area of solid (not including hole) = 28.935 cm2 8 cm 13. A 66kg boy is running at 3 m/s. Calculate his Kinetic Energy using the formula KE = 1/2mv2 (2 marks total) 14. A rocket has a mass of 2,000 kg. What is its acceleration if the forces of its engines are 50kN? Show working out to receive full marks. (1 marks total) 250,000,000 m/s² 25 m/s² 25,000 m/s² 15. In the diagram below a force of 125N (F1) is applied to a lever 20cm (D1) away from the fulcrum, (4 marks total) Fulcrum (a) How far away in metres would a force of 5N (F2) need to be to balance the load? (b) How much force (F2) would need to be applied 0.7m away to balance the same load (F1)? 16. For the circuit shown in the diagram below, calculate: (3 mark total) a. The total circuit resistance. b. The value of the current I. c. Calculate the voltage of the battery cell if the current was 3amp and the resistors stayed the same. 17. In the diagram of a hydraulic system, the area of piston A is 8cm2 and the area of piston B is 48cm2. (2 mark total) If the Force IN is 16 N, calculate the force OUT. 18. Plot the graph 2y = x3 – 4 using a value range for x from 0 to 3 (3 marks total) 14 12 10 8 6 4 2 0 -2 Choosing appropriate scale (1 mark) Accurately plotting y values (1 mark) X 0 1 2 3 Y Accurately plotting line of best fit. (1 mark) SPARE PAPER

1. (2 marks total) a. Multiply 109 x 309 b. Divide 1988 by 16 exactly 2. (4 marks total) a. Write 2/11 as a decimal to 2 decimal places b. Calculate 35% of 62 c. Add 103/4 to 92/3 d. Subtract 79.04 from 115.225 giving your answer correct to 2 decimal places 3. Circle the fractions in the list which are equivalent to 0.80 (2 marks) 2/7 32/40 8/10 8/20 8/25 9/24 36/45 40/50 4. Write the numerical value of: 3-3 (2 marks total) 5. Simplify z + 67 = 3z + 33 (1 mark total) 6. Solve to 1 decimal place 3y – 34 = 2y + 89 (1 mark total) 7. Solve the following equations to 2 decimal places (3 marks total) a. 37x + 1 = 35 b. 27 – a = 7.45 c. 3(y + 2) = 14 8. A 7-sided polygon is called a Heptagon. (3 marks total) a. What is the total of a Heptagon’s interior angles? b. If the Heptagon is regular (all angles the same), calculate the size of each interior angle to 2 decimal places. 9. Calculate the size of angle a and angle b. (2 mark total) 10. How many centilitres are there in 1.25 litres? (1 mark total) 11. The diagram below shows a stone carving with a hole on it; determine its volume (not including hole), if its thickness is 8 cm. Give your answer in cm3 to 2 decimal points. Assume π = 3.14 (6 marks total) 12. The diagram below shows a piece of alloy plate with a hole in it made from aluminium, copper and magnesium with a mass ratio of 35:3:2. Calculate the following to 2 decimal places. All measurements are in cm. (7 marks total) a. Using the formula A = 1/2(a+b)h calculate the height of the shape below. b. The volume of the solid part (not including the hole) of the shape below to 3 decimal places if it was 0.25cm thick. c. The mass of each material if the total mass of the plate is 62 kg. 10 cm Hole dia = 3 cm Cross sectional area of solid (not including hole) = 28.935 cm2 8 cm 13. A 66kg boy is running at 3 m/s. Calculate his Kinetic Energy using the formula KE = 1/2mv2 (2 marks total) 14. A rocket has a mass of 2,000 kg. What is its acceleration if the forces of its engines are 50kN? Show working out to receive full marks. (1 marks total) 250,000,000 m/s² 25 m/s² 25,000 m/s² 15. In the diagram below a force of 125N (F1) is applied to a lever 20cm (D1) away from the fulcrum, (4 marks total) Fulcrum (a) How far away in metres would a force of 5N (F2) need to be to balance the load? (b) How much force (F2) would need to be applied 0.7m away to balance the same load (F1)? 16. For the circuit shown in the diagram below, calculate: (3 mark total) a. The total circuit resistance. b. The value of the current I. c. Calculate the voltage of the battery cell if the current was 3amp and the resistors stayed the same. 17. In the diagram of a hydraulic system, the area of piston A is 8cm2 and the area of piston B is 48cm2. (2 mark total) If the Force IN is 16 N, calculate the force OUT. 18. Plot the graph 2y = x3 – 4 using a value range for x from 0 to 3 (3 marks total) 14 12 10 8 6 4 2 0 -2 Choosing appropriate scale (1 mark) Accurately plotting y values (1 mark) X 0 1 2 3 Y Accurately plotting line of best fit. (1 mark) SPARE PAPER

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