Should You Buy an Electric Car? Do the math. This article says that the EPA rating for the Nissan LEAF is exactly 30 kWh per 100 miles Assume you drive 15,000 miles per year Assume you pay 7.8 cents per kWh (kilowatt-hour) Assume your current vehicle gets 32 miles per gallon and gas cost $2.50 per gallon Which is cheaper to drive, your current vehicle or the Leaf?* What else should you consider before purchasing an electric vehicle? Ready to decide? Make an argument for either keeping your current vehicle or for getting an electric vehicle. Don't have a car? Make an argument for using public transportation and ride-sharing services.

Should You Buy an Electric Car? Do the math. This article says that the EPA rating for the Nissan LEAF is exactly 30 kWh per 100 miles Assume you drive 15,000 miles per year Assume you pay 7.8 cents per kWh (kilowatt-hour) Assume your current vehicle gets 32 miles per gallon and gas cost $2.50 per gallon Which is cheaper to drive, your current vehicle or the Leaf?* What else should you consider before purchasing an electric vehicle? Ready to decide? Make an argument for either keeping your current vehicle or for getting an electric vehicle. Don't have a car? Make an argument for using public transportation and ride-sharing services.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter2: Basic Electricity

Section: Chapter Questions

Problem 34RQ: What is the Btu/hour output of an electric heater rated at 15 kilowatts? a. 51.15 Btu/hour b. 51,150...

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9. A university campus has 200 classrooms and 400 faculty offices. The classrooms are equipped with 12 fluorescent tubes, each consuming 110 W, including the electricity used by the ballasts. The faculty offices, on average, have half as many tubes. The campus is open 240 days a year. The classrooms and faculty offices are not occupied an average of 4 h a day, but the lights are kept on. If the unit cost of electricity is $0.11/kWh, determine how much the campus will save a year if the lights in the classrooms and faculty offices are turned off during unoccupied periods. Draw a figure or FBD that will support the problem. Explain each step by step formula.
Assuming that a country is consuming 3.5×10^20 kWh of electrical energy in one year and the power plant has a conversion efficiency of 32%. Determine the mass of fuel consumed in kg for one day operation if the fuel used is nuclear pellets. Express the answer in 4 significant figures.
Suppose the cost of an incandescent bulb is 28 cents and that electricity costs 10.5 cents/kWh. Compact fluorescent lightbulbs (CFL), while they are more expensive, use 1/10 of the power for the same amount of illumination. What would be the maximum cost (in dollars) of a CFL such that the total cost (investment plus operating) would be the same for both CFL and incandescent 60 W bulbs? Assume both lightbulbs run for 1000 h.
You want to buy electric energy. You can buy from company A, B, C, or D,but you must choose only one. You obtain past data on these four suppliers, and you then determinethat the prices for some of them have been quite volatile, influenced by the state of the economy(recession, stagnation, and inflation). You assess this data given in the table below. Assuming that you simply want to minimize your average costs over the long run, determine theexpected costs for all energy suppliers. Select the supplier based on minimum expected cost.
Assuming that the Philippines is consuming 3.5×10^20 kWh of electrical energy in one year and the power plant has a conversion efficiency of 32%. Determine the mass of fuel consumed in kg for one day operation if the fuel used is nuclear pellets. Express the answer in 4 significant figures.
Assuming that the Philippines is consuming 3.5×10^20 kWh of electrical energy in one year and the power plant has a conversion efficiency of 32%. a. Determine the annual energy generated by the plant in kJ if combined mechanical and electrical efficiency is 75% b. Determine the annual heat by the system in BTU. Express the answer in 4 significant figures. c. Determine the mass of fuel consumed in kg for one-day operation if the fuel used is nuclear pellets. Express the answer in 4 significant figures. d. Determine the mass of fuel consumed in kg for one-day operation if the fuel used is anthracite coal with a heating value of 30080 kJ/kg. Express the answer in 4 significant figures.
The hull of a boat has a volume of 150 m3, and the total mass of the boat when empty is 8560 kg. Determine how much load this boat can carry without sinking when (a) in a fresh water lake and (b) in seawater with a specific gravity of 1.0
There are approximately 260 million passenger vehicles registered in the United States Assume that the battery in the average vehicle stores 540 watt-hours (Wh) of energy. Estimate (in gigawatt-hours) the total energy stored in U.S. passenger vehicles.
The car of Light Railway Transit (LRT) is propelled by 660-volt DC motor connected to the DC teeder lines of rectifier station. This car is required to exert a tractive effort of 4,500 kg at a velocity of 50 km/hr. How much current will be drawn from the feeder lines if the overall efficiency of motor and the flywheel drive is 65%?
You are using a 81% efficient, 185 W electric motor to power a mobile autonomous robot. If the robot is currently translating at 0.65 m/s, how much force can the motor provide? Express this force in units of lbf.
a compact fluorescent lamp uses less energy than its equivalent incandescent bulb.how much will a person save if he/she uses a 20 cfl instead of a 100 w incandescent lamp for 6 h in 30 days? electricity is priced at p 8.17/kwh
A pot of water is heated by transferring 1676 kJ of heat energy to the water. If there is 5.00 kg of water in the pot, and the temperature is raised by 80.0 K, what is the specific heat of water in J per kg Kelvin? Your answer