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D conversions

⁰ = degrees

1⁰ = π/180

180⁰ = π rad

∆ = Delta

= change in

D = distance

= 1/2 ∙ G(32 ft) ∙ T ∙ T

= S_avg ∙ t

= 1/2 gt²

= work/force

D = bore

D = dyne

= 10^-5 N

= 10^-5 m²Pascal

= 2.22 ∙ 10^-12 m ∙ Curie

D = electrical displacement

D_{Effort Moves} = Input Work/Effort

D_i = distance to image

D_{Inclined Plane Effort} = Resist. D ∙ Ideal Mech. Advantage

D_{Inclined Plane Resist.} = IMA/D_Effort

D_k = dielectric constant

= D/E

D_o = distance to object

D_{Resistance Moves} = Output Work/Resistance

d = slope change

= √((x₁-x₂)²+(y₁-y₂)²)

d = density

= g/V

= P(MW)/RT

= At. Wght/At. Vol.

= g/cm³

= m/V

= 8π²mx²(Eψ-Vψ)/h²ψ

= log₁₀ (I/TF)

d₁ = (v²_{2 mean} ∙ d₂₎) / v²_{1 mean}

= (MW₁)(d₂)/(MW₂)

dα = angular measure

dΦ = BdA

= Blds

= dAB

= ds/B

= -dtE

= -dtE/N

dΦ/dt = Bl(ds/st)

= Blv

dA = lds

= area of flux field traversed by conductor

= dΦ/B

dA/lds = B²

daiein = divide

day = 24 hour

= .143 week

= .033 month

= .0027 year

= hemera

= la

= kin

= 1/20 uinal

= 1/360 tun

= 1/7200 katun

dB = mf @ center

= μ₀Idl/4πa²

= μ₀Iadα/4πa²

= μ₀Idα/4πa

DB = decibels

deal = .24 lb

decameter = 10 meters

decempeda = 10 ft

decemvir = XV

decibels = DB

decigram = 10 centigrams

deciliter = 10 centiliters

decimeter = dm

= 10 centimeters

decimus (L.) = tenth

degree = ⁰

= 1⁰

= 60 minutes

= .00278 circumference

= π/180 radians

≈ 0.01745 radians

= 66.66 miles (equator)

1 degree earth = 69.16 mi.

deka (Gr.) = ten

dekaennea (Gr.) = nineteen

dekaex (Gr.) = sixteen

dekaepta (Gr.) = seventeen

dekagram = 10 grams

dekaliter = 10 liters

dekaokto (Gr.) = eighteen

dekapente (Gr.) = fifteen

dekaria (Gr.) = ten

dekas (Gr.) = ten

dekatessares (a) (Gr.) = fourteen

dekatos (Gr.) = tenth

dekatreis (tria) (Gr.) = thirteen

demi (F.) = 1/2

demikilo = .5 kg

denarius = drachmae

= 4 sestertius

= 10 as (Republic)

= 16 as (Imperial)

= 1/2 didrachmon (Greek)

= drachme (Greek)

= 1/100 ekatontadrachmon (Greek)

= 1/100 ekatostari (Greek)

deni (L.) = ten

density = d

deunx (L.) = 11/12

deuteros (Gr.) = second

deux (F.) = two

deuxieme (F.) = 1/2, 2nd

developmental frequencies = 10¹¹-10^12.5 Hz

dextans (L.) = 5/6

dg = decigram

= .1 gram

di (Gr.) = two

diakosioi (-es), (-a) (Gr.) = 200

diakosiostos (Gr.) = 1/200

diameter² = 1.273 area

diameter circle = dia.

= .3183 circumference

= circumference/π

dicha (Gr.) = in two

didrachmon (Greek) = 2 as

diez (Sp.) = 10

diez y cinco (Sp.) = 15

digitus = 1/16 Roman ft.

dis (Gr.) = two

dischilioi (Gr.) = 2000

disekatommyrion (Gr.) = billion

displacement = 4πV ∙ polarization

= P_{Int. Piston - PExt. Piston}

%Dissoc. = ([A]/м) ∙ 100%

divide = daiein

divided by = /

= ÷

dix (F.) = ten

dix-huitieme (F.) = eighteenth

dixieme (F.) = tenth

dix-sept (F.) = seventeen

dkg = dekagram

dkl = dekaliter

dkm = dekameter

= 10 meter

dl = deciliter

=.1 liter

dl = element length

= adα

dl/a² = μ₀I/4πdB

dl/μ₀a² = I/4πdB

dm = decimeter

= .1 meter

doce (Sp.) = twelve

dodeka (Gr.) = twelve

dodekas (Gr.) = twelve

dodekatos (Gr.) = twelfth

dodrans (L.) = 3/4

dollar (Can.) = piastre

= dollarion (Greek)

dos (Sp.) = two

douzaine (F.) = twelve

douze (F.) = twelve

douzieme (F.) = twelfth

dozen = 12

= .0833 gross

= 1/12 gross

DP = displacement

= πD²Ln/4

Dp = volt ∙ Dielectric k

dp = 4π volt∙ polarization

dp_H2O = V∙ d

dq = Idt

drachma = 1/8 oz

drachmae = 1/160 lb

= denarius

= 1/4 cistophorus

= 1/100 mina

= 1/4 tetrachmum

= 2 victoriatus

drachme (Greek) = denarius

dram = 1/16 oz Avoirdupois

= 3 scruples (Apothecary)

= 1/8 Apothecary ounce

= 27 11/32 grains

drei (G.) = three

dreibig (G.) = thirty

dreibigste (G.) = thirtieth

dreizehn (G.) = 30

dreizehnte (G.) = 1/30

drittel (G.) = 1/3

ds = small element of dist.

= dΦ/B

ds/lvdt = F/BI

ds/vdt = B²

dt = time of dω & ds meas.

= dq/I

= -dΦ/E

ducenti (L.) = 200

ducentisima (L.) = 1/200

duo (L.) = two

duo (Gr.) = two

duo-decim (L.) = twelve

duo-decimus (L.) = twelvth

duo-deni (L.) = twelve

duo-de-quadragesimus (L.) = thirty-eighth

duo-de-quadraginta (L.) = thirty eight

duo-de-quinquagesimus (L.) = fourty-eighth

duo-de-triginta (L.) = 28

duo-de-vicesimus (L.) = 1/22

duo-de-viginti (L.) = eighteen

dupondius = 2 as

dutzend (G.) = twelve

dw = small element of work

= Fds

= BIlvdt

= Blvdq

dwt = pennyweight

= 24 grains

dyne = D

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