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How can you reduce your own electricity consumption? Which of your behaviors or consumption uses the most electricity?
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- List four different forms or types of energy. Give one example of a conversion from each of these forms to another form.An electric water heater consumes 5.00 kW for 2.00 h per day. What is the cost of running it for one year if electricity costs 12.0 cents/kW h ? See Figure 20.41. Figure 20.41 On-demand electric hot water heater. Heat is supplied to water only when needed, (credit: aviddavid, Flickr)Explain, in terms of the definition of power, why energy consumption is sometimes listed in kilowatt-hours rather than joules. What is the relationship between these two energy units?
- A region gets its electric supply from a nearby coal power plant. Some people in the region install solar panels on their roofs to generate electricity. Factors about both electricity generated from coal and solar are listed in a table. Origin of Electricity Cost for House to Begin Service Cost to Use System/ Month Pollution Events How Electricity is Delivered Reliability coal $0 $122 continually burning coal to produce electricity wires attaching house to electrical grid interrupted only by short-term events solar $20,000 $0 initially producing and installing the solar panels large panels attached to roof dependent on time of day, weather, and seasons Which is an advantage of electricity generated from solar panels compared to coal?What are 5 different ways that electrical energy is converted into 5 different forms in energy at your house everyday?A region gets its electric supply from a nearby coal power plant. Some people in the region install solar panels on their roofs to generate electricity. Factors about both electricity generated from coal and solar are listed in a table. Cost for Cost to How Origin of House to Begin Electricity Use Pollution Electricity is Delivered Reliability System/ Month Events Service wires continually burning coal to produce electricity attaching interrupted only by short- coal $0 $122 house to electrical term events grid initially producing and installing large panels attached to weather, and dependent on time of day, solar $20,000 $0 the solar roof seasons panels Which is an advantage of electricity generated from solar panels compared to coal? O Solar panels provide electricity using large panels. O Solar panels provide electricity reliably throughout the year. O Solar panels provide electricity without any cost to the home. O Solar panels provide electricity without creating ongoing pollution.…
- *8) Describe two ways to conserve electrical energy by making small changes to your daily habits.Assuming that the diet of an average Canadian consumes 2,500 food calories per day (1 cal=4200 J), compare the amount of energy consumed by a Canadian family of 5 in one year in their diet with the amount of electrical energy their household consumes. The average annual electricity usage of a family of 5 in n area can be estimated by 6000+5x1,600 kWh. What is the ratio of electrical energy consumption to caloric energy consumption for this family of 5? (1kWh=3,600,000 J). Your Answer: AnswerOne 9-volt battery contains 19.0 thousand joules of energy. A 4-pack of 9-volt batteries cost $14.40 at Lowe's. Estimate the cost of battery energy in dollars per kilowatt-hour. Energy conversions are available in Section 2.2 of the textbook. Round your final answer to the nearest $10 per kilowatt-hour.
- 1) Determine the change in chemical energy each second required to produce this increase in electric potential energy. 2) If there are roughly 7×10^11 of these cells in the body, how much chemical energy is used in pumping sodium ions each second? 3) Estimate the fraction of a person's metabolic rate used to pump these ions. Assume the metabolic rate to be 100 W.Choose a source of energy from any of the renewable and non- renewable resources and explain how it is converted to electrical energy. Write a brief explanation on how it works.Use a diagram to explain how electrical energy is generated and transmitted from power plants down to our houses.