I'm a chemical engineering undergraduate studying in Canada right now. I'm not too sure what my future looks like, so I'd like to have some opinions on whether it's a good engineering discipline to stick with.
1. I'm interested in a career in R&D, but I hear that you need at least a PhD. I'm...
The drawing shows a bike wheel resting against a small step whose height is h=0.120m. The weight and radius of the wheel are W = 25.0N and r = 0.340m. A horizontal force F is applied ot eh axle of the weehl. As the magnitude of F increases, there comes a time when the wheel just begins to...
I recently found the proof that lim x-> 0 sinx/x = 1
http://www.geocities.com/pkving4math2tor4/4_the_elem_transc_func/4_01_01_03_lim_of_trig_func.htm
There is this one step I don't get...
Since Fred brought up the curriculum thing, here's the program structure of the nanotechnology program.
http://www.ucalendar.uwaterloo.ca/ENG/nano_eng.html
I applied for the program change (from chemical engineering), and I'm put on the waiting list. Wish me luck :)
BTW thanks for the...
So the two are actually quite distinct fields? Damn... my university doesn't offer materials engineering. It does offer a new program called nanotechnology engineering. (BTW, I'm going to the University of Waterloo in Canada)
What is the difference between the two? Can a MatE work as a ChemE and vice versa?
I'm really interested in designing materials, but not machines that manufacture the materials. Will I be limiting my opportunities if I pursue a MatE degree?
So you are saying that:
F \Delta t = \Delta p_{plane} = -\Delta p_{barge} ?
I worked out the change in momentum of the plane to be -3333.33, and t to be 13.61, then used d = v[SIZE="1"]2t - 1/2 at^2, and determined distance to be 227m.
By whole motion, I meant it vibrates for a while (hence covering more distance) before coming to a stop at its starting point. Wouldn't the negative work done by friction change as the mass moves vibrate more?
A plane with mass 1000kg lands on a stationary 2000kg-barge at an initial velocity of 50m/s. The only force to consider is the braking force which is 1/4 of the plane's weight (2450N). How long does the barge have to be if the plane lands at one end of the barge and stops at the other end...
air resistance is a complex matter because it depends on the shape of the object. water resistance is just as complex, and there would also be an upward buoyant force resisting gravitational force, so the acceleration of the object (if it moves to the bottom as well) would change.
elementary...
\frac{1}{2} mv^2
well, the kinetic energy is converted into elastic potential and work done by friction.
\frac{1}{2} mv^2 = \frac{1}{2} kx^2 + \frac{mg}{4} x
then as it reaches its max stretch, it returns to its equilibrium point it turns into this:
\frac{1}{2} kx^2 = \frac{1}{2} mv^2 +...
ok here's the exact question:
a particle of mass m rests upon a rought horizontal plane with a coefficient kinetic friction of mu = 1/4 and is connected by a light elastic string with spring constant k. if the string is just taut find the initial speed, v, that the particle needs if it is...
an object is connected to the wall through a spring and is resting at its equilibrium position. its mass is M and the coefficient of kinetic friction is 1/4. the object is flicked so that it will return to its original position (not instantly, but its oscillation is damped slowly).
what is...
a mass is attached to a spring and released. it then oscillates in simple harmonic motion. what is the transformation of energy?
i understand how it works horizontally (max Ee at the 2 ends, max Ek at the equilibrium position), but how does it work vertically now that Eg is also present...