ESTTra
slatio
ⅠPutthefollowi
gse
te
cesi
toChi
ese3’×1030’
123456789Itisofgreati
teresttostudythethreelawsofmotio
Voltageisequaltocurre
tmultipliedbyresista
ceThisbatteryproperlyusedmaylastforalo
gtimeIttakesabout8mi
utesforsu
lighttoreachtheearthThefu
ctio
ofa
a
te
aistotra
smitorreceiveradiowavesThedesig
a
dimpleme
tatio
ofprogrammi
gla
guageshasbee
morearttha
scie
ceOfallphysicalpropertiesofmatterelectricalresista
ceperhapsshowsthegreatestra
geofvaluesWearetoldbyOhm’slawthatthecurre
ti
acircuitisproportio
altotheappliedvoltageThisforceca
beresolvedi
totwocompo
e
tso
eofthemverticala
dtheotherhorizo
tal
10Pote
tiale
ergyiscapableofbei
greadilycha
gedi
toki
etice
ergy
ⅡPutthefollowi
gse
te
cesi
toE
glish3’×1030’
123456789速度等于路程除以时间。解这个方程花了我们两个小时。这些技术问题还有待解决。普通的窗户均承受（withsta
d）不了这么大的力。必须充分利用现有的设备。地球离月球的距离远达24万英里。导线越细，你获得的电阻就越大。磁化（mag
etize）这些物质需要一个强磁场。如果把电压加到电路的两端，在电路中就会有电流流动。
10让我们以原点（origi
）为圆心（ce
ter），作一个半径（radius）为R的圆（circle）。
fⅢPutthefollowi
gparagraphsi
toChi
ese40’
Moder
scie
cea
de
gi
eeri
gusemathematicsasala
guageforexpressi
gphysicallawsi
precisetermsTheelectro
icdigitalcomputerisavaluabletoolforstudyi
gtheco
seque
cesoftheselawsA
algebraicformulaisa
expressio
ofamathematicalrelatio
shipMa
yofthelawsofphysicselectro
icschemistryetcareexpressedi
thisformi
whichcasedigitalcomputersmaybeeasilyusedbecausealgebraicformulasmaybedirectlycha
gedtothebasicstepstheyreprese
tI
ge
eraltherearetwotypesofdigitalcomputersThefirstisthespecialpurposecomputerwhichperformsafixeda
dpresetseque
ceofcalculatio
sThistypeofcomputermaybeco
structedmoreefficie
tlyi
thatitca
belightera
dsmallera
dmayco
sumelesspoweretctha
thege
eralpurposecomputerBecauseoftheadva
tagesi
co
structio
smallspecialpurposecomputersareusedwheresuchfactorsasweightpowerco
sumptio
etcarecriticalTheseco
dtypeofcomputerisdefi
edasage
eralpurposedigitalcomputerTheseque
ceofi
structio
sthemachi
efollowsisge
erallyreadi
tothistypeofmachi
ea
dstoredi
thememoryofthemachi
e
fr