Sustainable Energy 1. How can electricity be defined? Electricity can be defined as the flow of electrical power or charge. It is a type of energy fuelled by the flow of electrons from positive and negative points within a conductor. 2. What is an electrical circuit? 3. What components are required to create an electrical circuit? In order to create an electrical circuit‚ you need: a) A source of electric power (battery or generator) b) A load to absorb the power (lamp
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WHAT IS TORQUE? Torque is a measure of how much a force acting on an object causes that object to rotate. The object rotates about an axis‚ which we will call the pivot point‚ and will label ’O ’. We will call the force ’F ’. The distance from the pivot point to the point where the force acts is called the moment arm‚ and is denoted by ’r ’. Note that this distance‚ ’r ’‚ is also a vector‚ and points from the axis of rotation to the point where the force acts. (Refer to Figure 1 for a pictoral
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National Cyber Security Research Agenda — Trust and Security for our Digital Life — Version 1.2 Editors: dr.ir. Herbert Bos (Vrije Universiteit Amsterdam) prof.dr. Sandro Etalle (Technische Universiteit Eindhoven) dr.ir. Erik Poll (Radboud Universiteit Nijmegen) Contents 1 A National Research Agenda for Cyber Security 2 Focus and objectives 3 The many aspects of cyber security 4 Setting the research agenda 4.1 Contexts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Questions: 1. When we say that something gives us “energy‚” what does that mean? What is a biological definition of energy? When we say that something gives us “energy” it means that‚ that drink gave us power to get up and do things. It energizes us so we can accomplish something. The biological definition of energy is the strength and vitality required for sustained physical or mental activity. 2. What is the physiological role of each of the molecules in your table? The role of each of the
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In today’s world‚ most of us know that it is important to turn off lights and other electrical appliances to conserve energy‚ but not everyone understands that the reason for the emphasis on cutting back on the use of energy is due to the inevitable depletion of our environment’s nonrenewable resources. Of course‚ electric power is not the only factor that has lead to our supply of nonrenewable resources declining in recent decades. The overdependence on natural gas and oil to fuel our cars and
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Topic Canada should subsidize renewable energy options such as wind and solar power in order to increase the share of renewables in Canada’s energy balance. Introduction Canada government subsidizes a number of socially beneficial services‚ including health care‚ education and energy services. Subsidies to the energy sector mainly are for oil and gas production‚ however‚ they are not all socially beneficial[figure 1]. In fact‚ they have negative impact for the environment and hinder
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(assuring the security of utility services) related to information security? Information security is the protection of information and it is critical elements‚ including the systems and hardware that used‚ store‚ and transmit that information‚ Thus‚ assuring the security of utility services are critical elements in information system. 4. What type of security was dominant in the early years of computing? The type of security was dominant in the early years of computing security was entirely physical
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information security. 1. What do you understand by information security? Explain the CIA triad. Information security:is the practice of defending information from unauthorized access‚ use‚ disclosure‚ disruption‚ modification‚ perusal‚ inspection‚ recording or destruction it has also be define as the protection of information systems against unauthorized access to or modification of information‚ whether in storage‚ processing or transit‚ and against the denial of service to authorized users or
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Physical Security Principles: An introduction Animals and humans alike are territorial. The desire to protect‚ and defend is a primal instinct. Safety concerns have given the opportunity to numerous security companies to expand their product‚ and include means of physical protection for private and public buildings. Improvements are made constantly because the technology is advancing. Unfortunately‚ the most sophisticated systems cannot pretend to keep the public safe; security systems are a deterrent
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quickly it could all slip away. His display of more than 200 energy drinks represents the success he ’s earned in an industry that ’s more likely to send intrepid entrepreneurs into bankruptcy than into Donald Trump ’s tax bracket. "About 80 percent of these are gone‚" he says proudly. "Most energy drinks fail in six months." Benedict is the founder‚ owner and CEO of Greensboro-based Source Beverages‚ a thriving energy drink company with expected revenues of $2 million this year and distribution
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