8/8/2019 Archive y1946 Cleveland Hopkins Radiation Lab Mit Chart Conversion Factors and Physical Constants Planning Division Office of Research & Inventions Navy Department Washi

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CHART SHOWINGCONVERSION FACTORS ANDPHYSICAL CONSTANTS, \ 0 , 9 , 1 t 1 1 218/5/4

* * F S E A R 101COMPILED BY

PLANNINGVSONOFFICE OF RESEARCH & INVENTIONSN A V Y D E P A R T M E N TA S H I N G T O N , D CM A R C H 1 9 4 6

WORK AND ENERGY(M L 2 T-2 )

I - ER G 2 3889 x 10KGCALORIE (MEAN)= 9 4805x10 ' B T U (MEAN)

I x 10 'JOULES 2 3730 x 10 FT POUNDAL= I DYNE CENTIMETER

1211 - GM CALORIE (15't ) = (4 1 8 5 5 0 0004) ABSOLUTE JOULEI - JOULE ( I N T E R N A T I ON A L ) = I 00032 JOULES (ABS)1 - JOULE (ABS) .2778 x10' KILOWATT HRS

. 3 725 x 10 H O R S E P O W E R H R S1 - LITERATM ( N OR M A L) = 37745 x 10' HORSEPOWER HRS

(2) I - ELECTRON VOLT .(1 60203 000034) x10 ERGS1 3 ) R E S T E N E R G Y OF THE ELECTRON 0 5 I mev13 ) ONE UNIT OF ATOMIC MASS. 931 m ev

PRACTICALE L E C T R I C A LN I T S

E . M . U . E. S.U.- AMPERE 01 ABAMPERE3 x10 -T A T A M P E R E

I - OHM A B O H M=/9 x 10" -STATOHMI - VOLT 10- ABVOLT/300-T A T V OLTI -COULOMB 0 I - ABCOULOMBx10. -STATCOULOMBI - HENRY 10 - ABHENRY/9 x 10" -STATHENRYI -F A R A D 10- ABFARADx10" -T A T F A R A D

CONVERSION FACTORS AND PHYSICAL CONSTANTSL E N G T H

(L )I - CM . 03937 INI - M .39 37 IN 3 28083 ET:1 0936 YDSI - KM = 3280 83 FT .109361 YDS .062137MI=053959 NAUTICAL MII - IN =254001CMI-FT .30 4801 C M) -SD .0914 40 MI - FATHOM 6 FT. 82880M1- STATUTE MILE = 1760 YDS . 5280 FT= 63,360 IN .1 60935 KM). 1 -NAUTICAL Mi LE . 1 1516 ST MI = 2026 7 YD .6080 27 FT- M I C R ON ( o1. 1010 '')MM

- A N G S T R O M U N I T 10 . CMW A V E LENGTH ASSOCIATED W I T H ONE ABS ELECTRON VOLT

X ; (12395.21x 10 CMI - XU/x)xxxM USED IN X - RAY OR 0- RAY WAVE LENGTHS

3' B O H R RADIUS =0 527 x 10CM4n men, 2' C O M P T O N W A V E L E N G T H ( X) -k-L= (0024265 , 0 000005) x 10 CM

CLASSICAL RADIUS OF ELECTRON 2807x10'" CMLIGHT YEAR= 5 9 x 10: MILES 9 4637 x 10"KMPARSEC 19 .10: MILES

TIME(T )

I - MEAN SOLAR DAY= 1440M I N 86,400 SECS1 - CALENDAR YEAR 8760 HRS 525,600 MIN 31,536,000 SECS.

)41- TROPICAL YEAR . 365 2422 MEAN SOLAR DOS1 - SIDEREAL YEAR. 365 25636 DAYS

V E L O C I T Y(LT')

-Ml/HR . 1467 F T / S E C , . 0 8683 9 KN OT S50 MI/HR 7 3 35 F T /SEC60 MI/HR = 88 00FT/SEC75 MI/HR .110025 FT/SEC.100MI/HR 467 FT/SEC.500MI/HR 733 5 FT/SEC

,5) V E LOC I T Y OF S OUN D I N A I R ( 0 C , I - A T M S ) 330.6 METERS/SEC.151VELOCITY OF SOUND IN WATER 1420 METERS/S EC) 21V E LD C I T Y OF L I GH T ( C ) (299776 000004) x10. CM /SEC.

- M/ SEC 2 2369 MI/HR1 - MI/HR. 0.44704 M /SEC1 - K N O T 37.28 YARDS/MINMEAN VEL H 2 MOLECULES(STP) 183,820 CM/SEC (so KY or orso)MEAN VEL 0, MOLECULES(STP) 45,955 CM/SEC (so m ry so)MEAN VEL N, MOLECULES(STP) 49,264 CM/SEC (soArt or so so)

A C C E L E R A T I O N(L T -2 )

121GRAVITY g32 174 FT SEC. 980 665 CMSEC I - FT/SEC 30 48 CM/SEC

A R E A(L 2 )

- CM : = 0 15500 IN'I - M = =1076387FT:I - KM = = 0 38610 MI' = 247 104 ACRESI - IN'645163CM'I -ET : = 929 03 CM:1 - YD= = 083613 M'

- MI'=3,097,600 YD: = 2,589,998 M : 640ACRES1 -ACRE 43,560 ET : = (2087 ET x 208 7 FT) .4046849 NI :I - CIRC MIL = AREA OF CIRCLE 0 001 INCHES IN DIAMETER

M I S C E L L A N E O U S(2)PLANCK CONSTANT. h (6 624 0002) x Icy" ER G SEC(2) G A S C O N S T A N T R. (8 3141* 000038) x 10 ERG DEG ' MOLE(2f 3 OLT Z M A N N CONSTANT.Ix .1 38047.000026)010" ERG DE G(21 STE41+.1 - 80IIIMANN CONST. Cr (5 672 0 003) x 10 ERG CM' DEG 'SEC . '

REST ENERGY OF ELECTRON511 . 10. ELECTRON VOLTSWATER HEAT OF FUSION (0C) 7971 CAL /GMWATER HEAT OF VAPOR' ZATION(I00 C ) 539 55 CAL /GM

(2) ELECTRONIC CHARGE. e (I 60203 000034) x10 'ABS e mu(2) SPECIFIC ELECTRONIC CHARGE (17592 00005) x 10' ABS e m u / GM - '

31415926535=e = 2 7182818284

(2) AVOGADRO'S NUMBER N. (60228 00011) x 10"I - F A R A D A Y = 96,500 COULOMBS

(2) G R A V I T A T IO N A L C O N S T A N T (6 670. 0005) x 10 (COGM)SEC .0A B S OLUT E - 2731 C - 492 FI - R OE N T GE N B2 7ERGS/CC. OF TI SSUEg411life".

THE GREEK ALPHABETCAPTASS

CRIPTAMEAL P H AAET A

G A M M AD E L T AEPSILO NZ E T ArTAT H E T AIO TAK A P P AAA M B D AMUNUXI0M I C R O NPIRH OS I G M ATA UUPSILO NPH ICH IPS IO M E G A

V O L U M E(L3 )

CC 006102 IN' 003381 FL 07I - LITER 100') 027 CC 33 8147F L OZ 1 0567 OTS .0 26418 GALS1 - IN' .163872 CC

1 - FT'. 28 317 LITERS . 7 481 GALS1 - OT 946 33 MLI - GAL= 3 78533 LITERS

) V OLUM E / M OLE OF IDEAL GAS (0C,(224146 00006) xCMMOLAR VOLUME (SIP) = 359 FT ',sr MO L

REFERENCESI NAVIGATION AND NAUTICAL ASTRONOMY, C DR BENJAMIN DUTTON, USN,

EIGHTH EDITION12) A N E W TABLE OF VALUES OF THE GENERAL PHYSICAL C O N S T A N T S ( A S

OF AUGUST 1941) R A Y M ON D T BRGE, REVIEW OF M O D E R N P HYS IC S ,13) 233, 1941

(3) INTRODUCTION TO M OD E R N P H Y S I C S , R I C H T M E Y E R A N D KE N N A R D ,THIRD EDITION

(4) THE A M E R I C A N N A UT I C A L A LM A N A C , 19 46(5) ACOUSTICS, A L E XA N D E R W O O D

HANDBOOK OF CHEMISTRY AND PHYSICS, TWENTY-THIRD EDITION,FOR REMAININGFACTORS AND CONSTANTS

M A S S(M )

1 - GM 00352702 .1 5 432 GRAINS (TROY)1 - KG = 35 27396 OZ .220462 LBSI - 02 .2834953 GM .4375 GRAINSI - LB = 453 592 GM160ZI - SHORT TON .2000 LBS 907185 KGI - LONG TON .2240 LBS016 047 KG

'21 ELECTRON MASS (9 1066 00032, x10". GM'2)PROTON .( 67248. 0 00031) x 10 "GM12)4 PARTICLE (66442 00012) x 10 ' ' GM1 2(H' ATOM (I 67339 000031) x 10"GMI 2 1 1 - ATOMIC MASS UNIT = ( I 66035 0 00031) x10 24 GM'31 M A S S OF A NEUTRON . 1 67 517 x10 ' GM

APPARENT MASS OF A MESOTRON = 50- 200 ELECTRON MASSES

D E N S I T Y(ML3 )

I - GM / C C . 0 03613 L E V I N 3 .62 43 LBS/FT'1 - KG = WT OF I LITEROF H,0 (4 C , 7 60 m m H g )I - LB r. MASS OF 27692 IN' 9,0 (4 C, 760 mmHg)

P R E S S U R E(M2T2 )

I A T M O S P H E R E ( A T M ) 1 0133 BARS 14 696 LBS/IN 1 0 3 3 2 G M S / CM : 7 6 0 m m H g = 29921 IN Hg (0C)

33 903 FT H,0 (0 C)1 - DYNE/CM : 1.0198 x 10 'GM/CM 2I - BA R I 000 x10 DYNES/ CM.