Recent content by graycolor

If I kind of get this right, your saying create this system: sin(2*pi*10hz) + sin(2*pi*30hz)*(some lowpass filter) = sin(2*pi*10hz) ?

I think I do need a lot more reading.

It has to be a filter, pretty much my goal is to demonstrate some form of filtering and demonstrate it in the real world. I can choose any signal I want, it's my choice and I have to build the physical circuit to prove the concept. I haven't taken Signals and Systems in years. I've spent...

Lets assume I have a signal that exists in time and it has an unit impulse at t=5, I only want to filter out that portion of the signal. So I plan to design a passband filter to filter the signal out at t=5. This is where I get confused, my passband filter exist in frequency so how is that...

I'm an engineer student, and I think I need a refresher on everything from algebra to calculus. Would definitely appreciate it if some of you can provide recommendations for some math self study software.

I'm a junior taking Electrical Engineering courses, so far I've done pretty well, but now I've noticed more and more classes are really testing my algebra skills. I thought I was pretty good, but I guess I thought wrong. I want to know if there is a software/game software that helps with...

If it was for a professional job I wouldn't. Non-professional why not. Your case I don't think it's a good idea.

I feel like I can't relax it's Spring break and I still can't relax. I'm an Electrical Engineer student and falling behind my classes. I fell behind, because I was lazy and to catch up I decided just to put in more hours into studying. I'm studying and I'm trying and it feels like I can't put...

I remember setting my calculator so it would automatically use the expand function or simplify fractions for me in RPN mode.Since I did a reset I don't know how to put that function on again. For example if I was to put 1 enter 3 divided, I would get 1/3 then if I were to multiply by 2...

Can anyone tell me what Orthagonal Projection means. I know the formula is b - proj b onto a. What does it mean exactly, I tried searching on google.

Ahah a foolish negative mistake thanks for looking guys, but I found the answer

A constant force F = -7i - 6j - 9k moves an object along a straight line from point (-3, 3, -3) to point (-3, 0, 5). Find the work done if the distance is measured in meters and the magnitude of the force is measured in Newtons. So basically I know I need to do a dot product of F with the...

Ahah, Thank you Sometimes my mind keeps flipping numbers around and the strange thing is I repeat the same mistakes over and over its like a disease or something haha. Thanks, Ray

The unit vector that has the same direction as the vector from the point A=(2,2) to the point B=(4,0) is? I chose to find the length so that would be A-B right? I got (-2,2) as the vector between the two points. I found its magnitude which was 2, then I divided the vector <-2,2> so it'll be...

Thanks guys