1 cP(centipoise)를 옳게 나타낸 것

1 cP(centipoise)를 옳게 나타낸 것

 

 

다음 중 1 cP(centipoise)를 옳게 나타낸 것은?

① 10 kg•m2/s

② 10^(-2) dyne•cm2/s

③ 1 N/cm•s

④ 10^(-2) dyne•s/cm2

 

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▶ What is a centipoise, cP (unit)?

= a unit of measurement of dynamic viscosity

 

 

 

> 1 P = 1 g/cm•s = 1 dyn•s/cm2 (= force•time/area)

( 참고 https://ywpop.tistory.com/4187 )

 

 

> 1 P = 100 cP

> 1 cP = 0.01 P

 

 

> 1 cP = 0.01 P = 0.01 dyn•s/cm2

 

 

 

답: ④ 10^(-2) dyne•s/cm2

 

 

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> 1 N = 10^5 dyn

> 1 m = 100 cm

> 1 m2 = 100^2 cm2

 

 

(0.01 dyn•s/cm2) (1 N / 10^5 dyn) (100^2 cm2 / 1 m2)

= (0.01) (1 / 10^5) (100^2)

= 0.001 N•s/m2

 

 

> 1 cP = 0.001 N•s/m2

 

 

 

 

[키워드] centipoise 기준문서, centipoise dic