I suggest you, as the first step, to start with a definition of an efficiency relation. Examples: efficiency=(total emitted energy)/(supply energy) efficiency=(emitted energy in a range of frequencies)/(supply energy) efficiency=(emitted energy in a range of frequencies and over a solid angle)/(supply energy)
Springdale, AR Lowest Regular Gas Prices Summary. There are 28 Regular gas price reports in the past 5 days in Springdale, AR. The average Regular gas price in Springdale, AR is $2.12, which is $0.29 lower than U.S. national average Regular gas price $2.41. The lowest Regular gas price is $2.05 of Murphy Express located at 7250 W Sunset Ave, Springdale, AR 72762.
Road trip planner. The total cost of driving from California to Arkansas (one-way) is $175.68 at current gas prices. The round trip cost would be $351.36 to go from California to Arkansas and back to California again. Regular fuel costs are around $2.51 per gallon for your trip. This calculation assumes that your vehicle gets an average gas mileage of 25 mpg for a mix of city and highway driving.