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Unitati de putere

PutereW1kWkgf·m/sft·pdl/sft·lbf/sCPhpCP electrickcalIT/hB·t·u/h
1watt=1J/s110e-30,10223,730,7371.36·10 e-31.341·10 e-31.340·10 e-30.8603.412
1 kW10e3110223730737,561,3601,3411,340859,853412,140
1 kg-forta metru / secunda9,819,81·10 e-31232,7157,2331,333·10 e-21,31509·10 e-21,31456·10 e-28,43233,462
1 foot poundal pe secunda4,214·10 e-2-4,297·10 e -313,108·10 e-25,729·10 e-55,651·10 e-55,649·10 e-50,0360,1438
1 foot-pound force pe secunda1,3561,356·10 e-30.13832,17411,843·10 e-31,818·10 e-31,818·10 e-31,1664,6263
1 cal putere735,5735,5·10 e-37517453,6542,47610,98630,9859632,4202509,66
1 horsepower745,7745,7·10 e-376,04017695,75501,01410,9996641,1902544,47
1 cal putere electric746746·10 e-376,07117702,81550,2211,0141,00041641,8802545,50
1 kilocalorie IT pe ora1,1631,163·10 e -30,11824,5980,8581,581·10 e-31,5596·10 e-31,5579·10 e-313,9683
1 British thermal unit pe ora0,2930,293·10 e-30,0306,9550,2163,985·10 e-43,9301·10 e-43,9308·10 e-40,2521

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Unitati de energie

Energie (lucru mecanic, caldura)J (Ws)ergkWhkgf·m (kpm)1 CPhkcalft.lbfB·t·u
1 joule = 1 W·s110e7277,8·10e-90,102377,5·10e-9238,8·10e-60,737948·10e-6
1 erg10 e-71------
1 kWh3,6·10 e6-1367·10e31,36859,82,655·10e63412
1 kgf·m = 1kpm9,81-2,724·10e-613,704·10e-62,342·10e-37,2339,294·10e-3
1 CPh2,648·10e6-0,7355270·10e31632,4-2509
1 kcal4186,8-1,163·10e-3426,91,581·10e-413,087983,968
1 ft·lbf1,356--0,138-0,324·10e-311,285·10e-3
1 british thermal unit1055-293·10e-6107,6398,5·10e-60,252778,1581
1 ev1,602·10 e-19-4,44·10e-261,63·10e-20-3,82·10e-23-1,517·10e-22

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Formule de transformare a scarilor termometrice

TemperaturaGrade Kelvin °K (T)Grade Celsius °C (t)Grade Fahrenheit °F (f)Grade Reaumur °R (r)
Grade Kelvin °KTt+273,15(5/9)·(f+459,67)r+218,52
Grade Celsius °CT-273,15t(5/9)·(f-32)5·r/4
Grade Fahrenheit °F(9/5)·T - 459,67(9/5)·t+32f(9/4)·r + 32
Grade Reaumur °RT-218,524·t/5(4/9)·(f-32)r

 

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