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Calculate the tail rotor thrust required to trim the helicopter in hover.

Continued overleaf Page 2 of 3 Q1 A helicopter has a main rotor speed of 260 rpm, and a main rotor radius R=5.90m. The gross take-off weight is 30kN. The blades have an average drag coefficient of CD=0.01, and the rotor solidity =0.08. The distance between the axis of the main and tail rotor is […]

Describe what effect this technology has on society and the environment (for example: photo radar helps prevent vehicular accidents and reduces fuel consumption associated with excessive speeding).

a detailed report on lidar guns Using the Internet, submit a research report outlining the kinematics involved in motion detectors designed and built into vehicles on the road today. Be sure to provide details on how the technology works. Describe what effect this technology has on society and the environment (for example: photo radar helps […]

Draw a circuit diagram for the descriptions below. Remember to use the proper symbols and ensure that your diagrams have a rectangular shape.

Draw a circuit diagram for the descriptions below. Remember to use the proper symbols and ensure that your diagrams have a rectangular shape. You do not have to put in the arrows showing the flow of electrons. Unit Unit title Level/Mark Percentage of term work 1. a) b) Three cells in series and three light […]

Compare and contrast AC and DC current. Explain why AC rather than DC current is used in homes to supply electricity.

Draw a circuit diagram for the descriptions below. Remember to use the proper symbols and ensure that your diagrams have a rectangular shape. You do not have to put in the arrows showing the flow of electrons. 1. a) Three cells in parallel, two light bulbs (loads) in series, with one switch b) Three cells […]

What is an atom? What are atoms made of?

What is an atom? What are atoms made of? You can use diagrams to illustrate your answer. Protons and neutrons are both composed of other particles called quarks and gluons. Give details of the three families of quarks and explain where they are found. Use the information in the table below to determine the quark […]

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