Quantum Physics

CONVERSION FACTORSLength1 m 39.37 in. 3.281 ft1 in. 2.54 cm1 km 0.621 mi1 mi 5280 ft 1.609 km1 light year (ly) 9.461 10 15 m1 angstrom (Å) 10 10 mMass1 kg 10 3 g 6.85 10 2 slug1 slug 14.59 kg1 u 1.66 10 27 kg 931.5 MeV/c 2Time1 min 60 s1 h 3600 s1 day 8.64 10 4 s1 yr 365.242 days 3.156 10 7 sVolume1 L 1000 cm 3 3.531 10 2 ft 31 ft 3 2.832 10 2 m 31 gal 3.786 L 231 in. 3Angle180° rad1 rad 57.30°1° 60 min 1.745 10 2 radSpeed1 km/h 0.278 m/s 0.621 mi/h1 m/s 2.237 mi/h 3.281 ft/s1 mi/h 1.61 km/h 0.447 m/s 1.47 ft/sForce1 N 0.2248 lb 10 5 dynes1 lb 4.448 N1 dyne 10 5 N 2.248 10 6 lbWork and energy1 J 10 7 erg 0.738 ft lb 0.239 cal1 cal 4.186 J1 ft lb 1.356 J1 Btu 1.054 10 3 J 252 cal1 J 6.24 10 18 eV1 eV 1.602 10 19 J1 kWh 3.60 10 6 JPressure1 atm 1.013 10 5 N/m 2 (or Pa) 14.70 lb/in. 21 Pa 1 N/m 2 1.45 10 4 lb/in. 21 lb/in. 2 6.895 10 3 N/m 2Power1 hp 550 ft lb/s 0.746 kW1 W 1 J/s 0.738 ft lb/s1 Btu/h 0.293 W