1-1. Stan Moneymaker needs 15 gallons of gasoline to top off his automobile's gas tank. if he drives an extra eight miles [round tripJ to a gas station on the outskirls of town, Stan can save $0.10 per gallon on the price of gasoline. Suppose gasoline costs $3.90 per gallon and Stan's car gets 25 mpg for ln-town driving. Should Stan make the trip to get less expensive gasoline? Each mile that Stan drives creates one pound of carbon dioxide. Each pound of (202 has a cost impact of $0.02 on we environment. 1Ilill'hat other factors {cost and otherwise} should Stan consider in his decision making? {1.2} 1-3. A typical discounted price of a AAA battery is $035. it is designed to provide 1.5 volts and 1.0 amp for about an hour. Now we multiply volE and amps to obtain power of 1.5watts from the battery. Thus. it costs $035 for 1.5 Watt-hours of energy. How much would it cost to deliver one kilo Watt-hour? How does this compare with the cost of energy from your local electric utility at $0.10 per kilo Watt-hour? 1-6. The Russian air force is being called on this year to intercept storms advancing on Moscow and to seed them with dry ice and silver iodine particles. The idea is to make the snow drop on villages in the countryside instead of piling up in Moscow. The cost of this initiative will be 180 million rubles, and the savings in snow removal will be in the neighborhood of 300 million rubles. The exchange rate is 30 rubles per dollar. Comment on the hidden costs and benefiE of such a plan from the viewpoint of the villagers in terms of dollars. {1.2J 1-1 A large electric utility company has proposed building an $820 million combined cycle, gas-powered plant to replace the electric generation capacity at one of its coal-red facilities. Develop three other alternatives for replacing this electric generation capacity. 1-5'. Automobile repair shops typically recommend that their customers change their oil and oil lter every 3,000 miles. Your automobile user's manual suggests changing your oil every 5,000-1000 miles. If you drive your car 15,000 miles each year and an oil and lter change costs $30, how much money would you save each year if you had this service performed every 5,000 miles? {1.31 1-10. Higher costs today can sometimes lead to higher savings in the future. An LED bulb cosE $30 and has a lifespan of 30,000 hours. In that time, it uses 300 kWh of electricity. A halogen bulb costs $5 and has a lifespan of 1,000 hours. in that time, it uses 150 kWh of electricity. Assuming that electricity costs 20centsper kWh, how much will one save by using an LED bulb over its lifespan
