Recent content by mz19

Homework Statement 1. Sports arbitrage: The following lines are available at different bookmakers on next week’s game for the Steelers versus the Ravens: Bookmaker 1: 1:1 odds that the Oakland beats Tennessee (if you bet $1, you win $2 for an Oakland win) Bookmaker 2: 2:1 odds that...

I missed a step when I typed this up. (2.3E11 KG)(20 MJ/KG) = 4.6E12/3600seconds= 1.28E9 MWh * (.2 efficiency)= 2.56E8 Mwh *1000= 2.56E11/3.8E12= 6.7% As far as part B I'm still confused. I need to convert the 2.56E11 to GW?

No, 1 GW is equal to 1 million KW. I'm trying to figure out how to convert KW to KW-hours. And sorry, I missed that. I didn't add in the 20% efficiency. Would I multiply the 2.56 x 10^11 kWh by 0.2 to factor in the efficiency and get 5.12x10^10

1 GW is equivalent to 1,000,000 KW. Is this the same as Kwh or do I need to multiply by the number of hours? In which case a year of production would have 8760 hours times 1,000,000 equals 8,760,000,000 kWh. Is this correct? Compared to the 256,000,000,000 kwh from burning waste, the 1GW...

Homework Statement If all the solid waste of 230 million tonnes were burned in waste-to-energy power plants that are 20% efficient,a) how many kilowatt-hours of electrical energy could be produced in a year? Compare this quantity with the total U.S. electrical energy production of approximately...

80000 watt hours is 80kwh. So multiply 80 kWh to get $8.00?

A.) A 20-W compact fluorescent lamp replaces a 100-W incandescent bulb. How much energy does it save over its 10,000 hour lifetime? B.) At $0.10 per kilowatt-hour, how much money does this save? My attempt at answering: Difference is wattage is 80-W, multiplied by 10,000 hours is...