The cost rating factor CRF of a metals is calculated using the following equation; CRF=(c*P)/D C= cost per unit mass (N/ton) P= density(kg/m^3) D= design stress(N/mm^2) Develop a PHP program to compute the cost rating factor of the following metals; METALS COST C DENSITY DESIGN STRESS Carbon steel 180000 7800 100 Stainless stell 864000 7900 130 Copper 900000 8960 46 Aluminium 540000 2700 14 Nickel 3960000 8900 70

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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The cost rating factor CRF of a metals is calculated using the following equation;

CRF=(c*P)/D

C= cost per unit mass (N/ton)

P= density(kg/m^3)

D= design stress(N/mm^2)

Develop a PHP program to compute the cost rating factor of the following metals;

METALS

COST C

DENSITY

DESIGN STRESS

Carbon steel

180000

7800

100

Stainless stell

864000

7900

130

Copper

900000

8960

46

Aluminium

540000

2700

14

Nickel

3960000

8900

70

 

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