coefficient of area = A1 -A2/A1(t2-t1)
=2m^2-2m^2/2m^2(80°C-20°)
=0/120
=0
and coefficient of linear expansion
using a as i can't find the proper symbol
2a = B
b=2/a
and then end up with zero as well.
so I can't see how zero and zero will help me
Homework Statement
I need help at identifying what forumala's to use to calculate the following
(Density of Aluminium 2770kg/m^3
An aluminium plate has a mass of 5kg and a surface area of 2m^2. The temperature of the plate is 450°C. The plate is immersed in a container of water of which...
Homework Statement
Determine by using steamtables for 2kg of steam
- Boiling point if pressure is 5MPa
- pressure if the boiling point is 195°C
- enthalpy of evaporation at pressure 2800kPa
- total elathapy in MJ required to produce 2kg of wet steam with dryness factor of 0.7 at a pressure...
Thank you for the feedback. I appreciate the advice!
Is the graph I drew correct?
can you maybe just explain to me what you mean with
"A 45deg triangle has sides 1-1-√2
A 60-30 triangle has sides 1-2-√3
so. sin(45)=cos(45)=1/√2
so. sin(60)= √3/2, cos(60)=1/2"
Homework Statement
I have done the following and would just like to know if it looks correct and any advice would be appreciated
Four forces acting on a point
30N west
35N south
20N west 45deg north
25N east 60deg north
1. The sum of the vertical components and state the direction...
my textbook doesn't really look at it. I've googled but haven't found much.
here is an example
10 m light horizontal beam
it has points ABCD
A at 0m, B at 2m, c at 8m and D at 10m
it goes positive 38N at A then to 34N at B then straight down to negative 16N the line then goes to C...
Homework Statement
I have a shear force diagram and I am asked to find the magnitudes of the point loads and where are they situated
My question is, what am I looking for to find the point loads in a shear force diagram?
Homework Equations
The Attempt at a Solution