I was going through a "stack" of old photos and found one showing a http://en.wikipedia.org/wiki/Transmission_electron_microscopy" . :smile:
http://img142.imageshack.us/img142/4323/temzy4.jpg
I'm not familiar with the subject but I've found a lecture by Steve Roberts (Oxford) that might be helpful:
http://www-sgrgroup.materials.ox.ac.uk/lectures/ceramics.html
Take a look at "Handout 3: Crack growth and thermal shock", page 3.
Regards,
nazzard
Hello cabellos,
I get the same result as your calculator. You might have made a mistake while using the partial fractions method.
\frac{s+1}{s^2-4s+4}=\frac{s+1}{(s-2)^2}=\frac{1}{s-2}+\frac{3}{(s-2)^2}
Regards,
nazzard
Hello Saketh,
to get
\frac{\partial u}{\partial x} = \frac{\partial v}{\partial y}
you need to use the fact that div V = 0 for incrompressible liquids.
This follows from the continuity equation:
\frac{\partial \rho}{\partial t} + \nabla(\rho\,\textbf{V})= 0...
Hello Checkfate,
you can continue to use the definition of absolute value and rewrite the function for both cases. For x\geq-2 you would get
y=\frac{|x+2|}{x}=\frac{x+2}{x}=1+\frac{2}{x}
and you can discuss the range of this function for x\in[-2,0) and x\in(0,\infty).
(similar for the case of...
The button labeled ^ should be the right one. According to a picture of this calculator I've found it is just above sin.
Use EXP to get powers of 10. For example: EXP,5,EXE would be the same as 10,^,5,EXE. Both results will be 100000.
Regards,
nazzard
I've edited post https://www.physicsforums.com/showpost.php?p=1097293&postcount=6" with more information regarding problem 2.
The formulas I used are basically the ones you've provided.
v(final)=v(initial)+at
In problem 2 I've used this formula a\cdot t_x to calculate the final velocity of...
Hello Gyros,
sorry, my sketches might have caused even more confusion :redface:
Problem 1:
Both the fish and the pelican have initial velocity of 3 m/s. There's some information missing:
Does the pelican fly horizontally at all times? I assumed that this is the case and that's why the...
Hello Gyros,
Ok then...that means the pelican and fish are represented by the letters P and F instead of nice drawings :frown:
Do these little sketches help you to get new ideas?
http://img142.imageshack.us/img142/4568/pelicanbd7.jpg
You can try to separate the movement into x and y...
My final table looks like this:
x__f'(x)__g(x)__g'(x)__h'(x)
0___7____2____-4____32
2___8____0____-3___-63
I'm still not sure where the mismatch with the signs comes in. :rolleyes:
Ok I can't seem to follow you here and I had problems with your notation in another post as well. What does f'=gx and f'=2(0^2-0) mean? :redface:
for h'(2) I get:
h'(2)=f'(g(2^2-2))*g'(2^2-2)*(2^2-1)
h'(2)=f'(g(2))*g'(2)*(3)
h'(2)=f'(0)*(-3)*(3)
h'(2)=8*(-3)*(3) *wrong*
:rolleyes:
*edit: I...
Hmmm, starting with this table and h(x)=f(g(x^2-x)) I don't get 21 or -21 as an answer for h'(2). :frown:
x__f'(x)__g(x)__g'(x)__h'(x)
0___7____2_____??___32
2___8____0____-3____??
Maybe I've done something wrong along the way? I'll have another look.