I'm first year ENG at a Canadian university where first year is general for all engineers. Next year I get to pick a field to specialize in. I'm really interested in computer vision, for example a system that could track a moving target or something. I Know this is crazy complicated but I'm...
It's definitely milliNewtons (mN). Anyways I had three guesses, my first was an arithmetic error. And guess two and three were 1.5x10^-2 and 1.5x10^-3 respectively. It was also definitely asking for the answer to two sig figs, and when you get close to an answer but not exactly it tells you...
So sorry, yeah the units on the 38 is mN. I'll try that. I got a 1.5x10^-2 so I know that I've got the right digits, just a problem with my powers. Thanks a lot for the confirmation/help!
woah, just tried 1.5x10^-3 and it was wrong. And it was my last guess. I have no idea what was wrong
sorry. 8.4 mg needles. It took 81 ms to stop and my impulse was 3.1x10^-3 kgm/s
Here's my work through with numbers:
ΔP=J
m(v2-v1)=J
v2-v1=J/m
v1=-J/m + v2
v1=-(3.1x10^-3)/(8.4x10^-3)+0
v1=-0.369m/s
v2=v1+aΔt
a=(v2-v1)/Δt
a=(0+0.369)/(81x10^-3)
a=4.56 m/s^2
Δd=v1Δt+(0.5)aΔt^2...
Ok, I'm guessing that your columns are respectively weight, length and how much it extended? Anyways to determine E (Young's modulus) we're going to have to know the cross sectional area of the specimen. E=sigma/epsilon so we need to calculate stress with the formula sigma=F/A. Anyways I'm just...
Homework Statement
Physicians perform needle biopsies to sample tissue from internal organs. A spring-loaded gun shoots a hollow needle into the tissue; extracting the needle brings out the tissue core. A particular device uses 8.4 needles that take 81 to stop in the tissue, which exerts a...
I didn't choose any point as an origin. The question asked about the couple on the entire triangle. And sorry here's my work for the equations:
It says that the total moment couple has to be 1140 counterclockwise, so I assumed counterclockwise as the positive direction for all the moments...
Homework Statement
In the figure F1= 27.9KN, F2= 39.8KN, F3= 61.8KN
What distance d is required for the net couple moment on the triangle to be 1140 counterclockwise?
Express your answer to three significant figures and include the appropriate units.
link to image http://imgur.com/cBnLJ...
I'm not sure I understand. for example if this was my code:
//other code
double anynumber(0);
cout<<"Please enter any number: ";
cin>>anynumber;
How would I use this typeid (function?) , if the user entered for example the character ' a '
I'm fairly new to programming. I'm doing an undergrad ENG degree and one of my first year mandatory courses is programming. It's my first time ever doing it so I don't know much yet. I'm currently learning C++. I'm in the middle of working on a problem that pretty much involves me making a...