Posted by Lisa on Saturday, February 2, 2013 at 7:43pm.
A standard 1.000kg- mass is to be cut from a bar of steel having an equilateral triangular cross section with sides equal to 3.00in. The density of the steel is 7.70g/cm^3.
How many inches long must the section of bar be?
- Chem Help!! - bobpursley, Saturday, February 2, 2013 at 8:43pm
where area=sqrt(s(s-a)^3) s=half perimeter=(3in*2.54cm/in)*3/2
- Chem Help!! - Lisa, Saturday, February 2, 2013 at 9:33pm
- Chem Help!! - Greg, Saturday, February 2, 2013 at 9:46pm
How many inches is the section of the bar
- Chem Help!! - Devron, Saturday, February 2, 2013 at 10:33pm
I'm not sure that I understand what you did, but this is what I did.
1kg=1 x10^3 g
Volume =mass/density= (1 x10^3 g/7.70g/cm^3)= 130cm^3
Since in a equilateral triangle all sides are equal and since volume = cm*cm*cm or l*w*h
Converting to inches
5.06cm*(1in/2.54)= 2 inches/side
Answer This Question
More Related Questions
- Maths - A steel bar 3.6m long is in the form of a triangular prism.its section ...
- Slsu - A piece of steel bar 29 7/8inches long was cut from a steel bar of 6 feet...
- Physics - Steel is very stiff, and the Young's modulus for steel is unusually ...
- Calculus - A trough is triangular in cross section, an isosceles triangle with ...
- THEORY OF MACHINE - A steel bar 10 m long and 10 cm * 2.5 cm in section. It is ...
- Math Wrod Problem - 1. A long strip of copper 8 inches wide is to be made into a...
- Physics - The composite bar BCD in the figure is fixed at the wall B (x=0), and ...
- physics - Consider two straight bars of uniform cross section made of the same ...
- Math-Please Help - The arch is made up of equilateral triangular sections with ...
- solid mechanics - a steel bar 10m long and 10cm*10cm in section .it is subjected...