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.
All rights reserved. 1  Crude Oil futures: $46.40 (-0.58 = -1.23%) 2  U.S. Average Regular Gas Prices is $2.4. 3  Lowest Regular Gas Prices is $1.44 in Oklahoma City,OK.  Highest Regular Gas Prices is $4.13 in Everett, 1 WA. Sheila63 from  , sparky from Whitwell, 1  TN. cirilloathome from Rowena,  TX. asweetdarlene210 from Enfield, NC.