This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: !"#$% ’"( )*+ ,- .$$/ "0$ 1!234 1# Any answer to an engineering question must have a value and a set of units. 2# :nits must be consistent for addition and subtraction 3# S? system is easier to manipulate due to multiples of 10, but American Cngineering is more familiar and intuitive Dasic Eimensions S? cgs AC Mass kg g lb m Length m cm ft Time sec sec sec Amount g-mol g-mol lb-mol Temperature K K ¡ Transcendental functions and their arguments must be dimensionless¢ for ln x, both x and ln x must be dimensionless, Oust like exp x, sin x, cos x, 10 x , etc. 105# )"06$(%5"0%7 Treat unit conversions as forms of multiplying by 1 1 2 • 3 3 = 3 6 10.0 lb m • kg 2.54 lb m = 3.94 kg the things in P Q are Oust different forms of 1R 8"(9$ :0; <$5=*#7 The problem is Oust in the definition of the word used for force in AC is the same as the word used for mass....
View Full Document
This note was uploaded on 12/29/2011 for the course CHE 10 taught by Professor Doyle,f during the Fall '08 term at UCSB.
- Fall '08