A force can do one of four things to an object: 1. Make it speed up - accelerate. 2. Make it slow down - decelerate. 3. Change its direction. 4. Change its shape. If something is doing one of these four things there must be net force acting upon it. Newton’s First Law ’Every body continues in a state of rest or uniform motion unless acted upon by an external force.’ Something without net force acting on it will either stay still or move at a constant speed in a straight line until
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known the means of holding hands together then pushing the button that take part as the sign that the electricity will flow. As the two persons standing beside that equipment push the button‚ those persons including other people who hold their hand will be grounded. The reason why this scenario happens‚ since human is a conductor of electricity‚ then if they hold hands together‚ the electricity will flow through them. That equipment is my favorite among all devices I saw in the exhibit. Another
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College Goes Wireless Dartmouth College‚ one of the oldest in the United States (founded in 1769)‚ was one of the first to embrace the wireless revolution. Operating and maintaining a campuswide information system with wires is difficult‚ since there are 161 buildings with more than 1‚000 rooms on campus. In 2000‚ the college introduced a campuswide wireless network that includes more than 500 Wi-Fi (wireless fidelity) systems. By the end of 2002‚ the entire campus became a fully wireless‚ always-connected
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Assignment Week 2 APP-44 Game Controllers: Enriching the Gaming Experience Harley Kimble Longherst University
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Neeru2012-10-23T12:15:00 CLASS 10 ELECTRICITY 1. How much current will an electric heater coil draw from a 220 volt line‚ if the resistance of the heater coil is 40? (1 Mark) (Ans) Given‚ R= 40‚ V=220 V We have the relation‚ I = V/R = 220/40 = 5.5 A 2. What is electric current? (1 Mark) (Ans) The rate of flow of charge per unit time through a conductor is called electric current. 3. What is the SI unit of electric current? (1 Mark) (Ans) The SI unit of electric current is ampere
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through a conductor of resistance R (Ω) for a given time t. [1] Although electric resistance heating converts nearly 100% of the electricity to heat‚ the overall process is still inefficient since the electricity is usually produced from oil‚ gas‚ or coal generators that convert only about 30% of the fuel’s energy into electricity. [2] Due to the energy loss in electricity generation and transmission‚ electric resistance heating is often more expensive than heat produced using combustion appliances
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Computer Communications 54 (2014) 1–31 Contents lists available at ScienceDirect Computer Communications journal homepage: www.elsevier.com/locate/comcom Review The Internet of Things vision: Key features‚ applications and open issues Eleonora Borgia ⇑ Institute of Informatics and Telematics (IIT)‚ Italian National Research Council (CNR)‚ via G. Moruzzi 1‚ 56124 Pisa‚ Italy a r t i c l e i n f o Article history: Received 12 May 2014 Received in revised form 16 September 2014 Accepted 16 September
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who haven’t put much effort into chancing their business greener and cleaner. Firstly‚ one major threat to Estonian environment is oil shale mines and power plant in Ida-Virumaa. It has been the main source of electricity in Estonia for a long time‚ maybe even too long. Making electricity from oil shale is not only expensive‚ it is also very polluting and mining is ruining soil and ground water. Nowadays there are much more efficient alternatives to producing electric energy. The company who owns
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attached to spindle to which rotating disc is attached. Many times it becomes necessary to find out the energy consumption consumed by our house appliances we use. The project “ADVANCED ENERGY METER” prepared by us can be used to find out how much electricity appliances in our house are using and how much they cost to run. INTRODUCTION If we want to save power and reduce costs‚ we need to know how much power each appliance uses over a period of time. Most appliances don’t run all the time‚ so we need
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000 Mar 28th: Returned goods worth Rs 2‚000 to Rahul. April 15th: Raj returned goods worth Rs 3‚000. May 8th: Paid salary to staff Rs 4‚000. May 22nd: Paid Rs 18‚000 to Rahul on account; 6‚000 by cash and 12‚000 by cheque June 11th: Paid electricity charges Rs 7‚000. June 25th: Received Rs 27‚000 from Raj on account; 15000 by cash and 12‚000 by cheque. July 2nd: Withdrew Rs 10‚000 cash for Samya’s personal use July 18th: Purchased goods worth Rs 30‚000 on credit from John. Aug 10th:
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