In lifting an object, net work is certainly done (in general). The integral of the dot product of the net force on the object and its position vector gives the work done on the object as it is displaced. In a gravitational field, neglecting non-conservative forces, this will be exactly equal to...
I would like to know people's experiences in how they were able to gain employment (see poll). Any thoughts or comments people might have are openly welcomed.
I ask because I am a recent MecE grad. I graduated top of my class from a strong program. Right now the economy is not great for MecE...
Don't do it. By the time you finish your MecE degree, four years from now, you'll find that industry probably will turn a cold shoulder and won't even hire you. The only way most people get hired into good engineering positions is through cronyism and nepotism. If you try to get in based on your...
I should have been more clear. It's not that I hate team work, I just hate what team work usually becomes. In any design project I've been a part of in school, the "team" identifies pretty early on that I care about doing well and am willing to do more than my fair share of work. This leads to...
Hi All,
Recently I graduated with a BSc in mechanical engineering. I excelled greatly in studying engineering, and finished at the top of my class.
I'm 27 and didn't start my degree until I was 23. I didn't graduate high school at 18 (I dropped out after never having applied myself in junior...
Yes they are. English is the best language, without a doubt. If a country's first language isn't English, it probably isn't worth living in anyway. Once most countries get up to speed, they will start speaking English. Hopefully one day English is the only language humans speak.
The new Resnick & Halliday (Fundamentals of Physics, 9th) is terrible. Used it for my wave motion and optics intro physics course this past fall. Really bad book. Avoid at all costs if you can.
Personally I wouldn't bother with languages other than English. It is the language the world speaks formally and time spent learning other second-rate languages is time better spent learning math and science.
For the most part a lot of the material I saw was brand new to me. Some of the calculus was obviously review, as was a bit of the chemistry and physics. The thing is, I did distance learning in high school so I am a very disciplined self-learner. I did however find that at times, some of the...
Fall:
Engineering Thermodynamics
Mechanics of Deformable Bodies I
Calculus III
Introduction to Thermo-Fluid Sciences
Mechanical Design I
Engineering Graphics and CAD
Winter:
Fundamentals of Electrical Engineering
Materials Science II
Differential Equations
Introduction to Mechanical...
I got a 3.9 (out of 4) in first year engineering without going to a single lecture. Can I get a 4.0 easily if I go to all my lectures in 2nd year and beyond?
Ah you are right. I hadn't even considered that. The component of gravity in the tangential direction gives the car an acceleration of 4.39 m/s^2, so the car would need to be breaking to have a net 3 m/s^s acceleration. Thank you.
I posted the solution to the problem I am having below. I did this problem and got it wrong because I had the force of friction on the car acting in the opposite sense (which I argue it should be). I don't get this at all, have they made a mistake in the solution? The wheels apply a backward...
I still don't really understand.
For example, say I have a vector w where its coordinates relative to the standard basis in 2-space are (1,1)
Now say I have a new basis that I would like to map my coordinates of w to. This basis consists of the vectors u1 = (2,-4), u2 = (3,8).
If I set up...