Component Definition and 544 Threads

Homework Statement Well I am trying to get help on weight compent. It is a box sliding on an inclined surface with angle 30 degrees. Homework Equations w= mg The Attempt at a Solution I am trying to find the components for weight force acting on the box. Book says w=mgcos(30) is...

How can we find component vectors along non-perpendicular lines/axis? Please illustrate with example.

I'm working on a problem in which a block sits on an inclined plane of angle @ above the horizontal. Assuming there is no friction, the block will slide down the plane with a force of mg*sin(@). The trouble I'm having is figuring out the horizontal and vertical components of that force...

Hi there! I used a horizontal furnace under hydrogen (reductive gas) and nitrogen (protective gas) to reduce some kind of lanthanum nickel oxide. After reduction and air-cooling, I took the sample out of the furnace. The sample started to flame and been oxidized. There was no time to move the...

What are the components of the 200kN force along, the x, y and z directions? http://img7.imageshack.us/img7/1358/72180912.jpg So, I can find the x and y components, but I don't know how to find the z component, I have been researching on the internet, my textbook (Vector Mechanics for...

I'm not quite clear about this notion. Could anyone explain a little bit for me? Here is the definition: Let a be an arbitrary point in X . Then there exists a largest connected subset of X containing a, i.e. a set Ca such that: • a ∈ Ca and Ca is connected; • for any connected subset S of...

Homework Statement The four wires that lie at the corners of a square of side a=5.10cm are carrying equal currents i=2.40Amps into (+) or out of (-) the page, as shown in the picture. Calculate the y component of the magnetic field at the center of the square. Homework Equations B...

Homework Statement A ball moves counterclockwise in a circle and is speeding up. The radius of the circle is 5 m. Its angular acceleration is α, (2.09 rad/s2)\hat{k} The ball's mass is 0.125 kg. What is the tangential component of the force on the particle? Homework Equations The Attempt at...

EDIT: I meant radial in the title. Homework Statement A ball is going around in a circle of radius 4 m. It goes with a constant angular velocity of (13 rad/s)\hat{k} for 0.5 s. After that, it takes 4 s to come to a complete stop. Find the radial component of the ball's acceleration at 2 s...

There's this equation e_{ij} = \alpha_{ij}\DeltaT + d'_{ijk}E_{k} + Q'_{ijk}H_{k} + s_{ijkl} Sigma_{kl}, which is the strain tensor I'm asking about. All I want to know is what the component d'_{ijk}E_{k} is called and what its physical meaning is. Thanks in advance

At the end of a problem (I'm sure I did all the math correctly, that's not an issue) I'm supposed to graph the corresponding resultant vector. However, along with the magnitude of the vector, the angles given are in component form: θx, θy, θz. I've never encountered this before, and although it...

Homework Statement Determine the magnitude of the u and v-components of the 4kN force shown in the figure. Homework Equations The Attempt at a Solution I'm confused, am I suppose to assign u and v a magnitude and direction in order to obtain a resultant force of 4kN...

Unless there wind resistance do you always treat the horizontal velocity of a projectile as constant?

Dear experts, :) I found a LED bicycle blinking light. The circuit is very small and it has a drop of, what i can only describe as, thick black dried 'ink' or glue or insulating material (as shown in the picture ) http://www.flickr.com/photos/46348930@N03/4257680841/ . I opened up another...

Hello, Anyone out there with the decade cmos 4017 model? Im using LT spice for some simulation but i can't find it in the standard library. Thanks in advance. Nash78

Trying to teach myself electrochemistry out of a textbook and it's kind of confusing at some parts without any teacher to ask questions, but I think I'm doing a pretty good job. I've got a test tomorrow on this stuff and I'm kind of burned out from studying (about 20 hours in the past 4 days) so...

Homework Statement An 80 kilogram skier slides on waxed skis along a horizontal surface of snow at constant veloctiy while pushing with his poles. what is the horizontal component of the force pushing him forward? [b]2. Homework Equations [/] is there an equation? The Attempt at a Solution...

Homework Statement http://img705.imageshack.us/img705/20/33060912.png Homework Equations http://img706.imageshack.us/img706/7514/67377660.png The Attempt at a Solution I don't understand how they find equation number (5). Can somebody help me with this?

I have this spring sort of thing it looks like this - What we can do with this is push it form the top, it compresses (the middle section which is not straight is a spring sort of stuff) and forces the air inside the arrangement out...sorta like a hand blower. When you release the...

the problem says: find and state the component form of the following vectors. c= 3i + 4j P(0,0),Q(5,-2) for some reason, i think i ended up doing unneccessary work. I found the Work of the problem instead, which is 7. Is work the same thing as component form? If not, what am I supposed to...

What is this(copper-coil one)?

What is this ( silver colour one )

What is this ( the yellow colour one ) ?

2A302J is what electronic component ?

Hello, I am slightly confused with component vectors. if I am trying to add two vectors, which are 33m/s [W33E] and 53m/s [N54W] i have to break them down into x and y component. i can get them by using cos and sin. but there are some occasions where I am not sure if the degree I am...

hello everyone I am just new here i need help with my homework here's the problem A cross skier skis 7.40 km in the direction 45° east of south then 2.80 km in the direction 30.0° north of east and finally 5.20 km in the direction 22.0° west of north . Find the resultant vector using...

I am studying vapor liquid eqilibrium for two component systems. There are some things which confuse me right now. These are the questions: - (1) Since there has to be atleast one phase, the degrees of freedom are maximum three. Which means, the degrees of freedom are P, T and composition...

Homework Statement Component 1 and 2 form an ideal solution. The vapor pressure of pure component 1 is 13.3kPa at 298K, and the corresponding vapor pressure of component 2 is approximately zero. If the addition of 1.00 g of component 2 to 10.0g of component 1 reduces the total vapor pressure...

Homework Statement A ball rolls off a table with a horizontal velocity of 5 m/s. If it takes 0.6 seconds for it to reach the floor what is the vertical component of the ball's velocity just before it hits the floor? (use g= 10 m/s^2) The second part of the question is what is the...

Homework Statement the weight of a box on a plane inclined at 30 def is represented by the vector W. What is the magnitude of the component of the weight that acts parallel to the incline. Answer is given in terms of W possible anwsers .5W 1.5W .87W and W Homework Equations The...

Honestly, I am soo confused...And this is the last problem left. If I get it wrong then I'm in trouble. Please help! I don't know what to do at all. A skier squats low and races down a(n) 11 degrees ski slope. During a 5 second interval, the skier accelerates at 2.3 m/s^2. (A) What is the...

Homework Statement A velocity of 10ms^{-1} is to be replaced by two components, 7.0ms^{-1} and 5.0ms^{-1}. What must be the angle between the two components? Homework Equations The Attempt at a Solution Now I think that the answer to the solution lies in using trig to work out...

Homework Statement Canon fired at 45Degrees, at 300m/s Assuming no air resistance, a= -9.8m/s^2 ViX = 300cos45 = 212m/s ViY = 300sin45 - 212m/s Displacement = 2293m [used vf^2=vi^2+2a(d)] rearranged for d, and vf=0, at highest peak. Time the ball is in the air= ? Homework...

Homework Statement A coastguard station locates a ship at range 15.4 km and bearing 123° clockwise from north. From the same station a plane is at horizontal range 19.4 km, 150° clockwise from north, with elevation 2.06 km. What is the vector displacement from plane to ship, let i represent...

I know that a vector has magnitude and direction. But what about its components? Are they still considered vectors? Thanks in advance

Homework Statement You are given a vector in the xy plane that has a magnitude of 85.0 units and a y component of -50.0 units.? The two possibilities for its x component are + and - 68.74. Assuming the x component is known to be positive, specify the vector which, if you add it to the...

How when do you know when to use cosα in the x component or y component? I thought you only use cosα on the x component since it's the x coordinate on the unit circle. Can somebody give me an example, I would appreciate it.

Homework Statement Find the Fx' and Fy components of the given force, given that y' is 10 degrees, there is a 60 degree angle between F and X in the negative direction, and F = 360 N. Use only the Law of Sines, Law of Cosines and Law of Parallelograms. Homework Equations Sin a / A =...

Use the component method to find the resultant(direction and magnitude) of the three forces shown. Could someone please verify my answers or tell me where I went wrong. Ax = 500 Cos 30 = -433N Ay = 500 Sin 30 = -250N Bx=-250 N By= 0 Cx=200 Cos 20 = 187.9N Cy= 200...

Homework Statement The vector -5.2 A has a magnitude of 47 m and points in the positive x direction What is the x component of vector A? What is the magnitude of vector A? Homework Equations The Attempt at a Solution

What does A1mean? This A1 component does not even have a X subscript. Then there's A1x and resultant R2.Can anyone give an example on how to interpret and graph both vector components & resultant from a problem? Thanks in advance.

Homework Statement Resolve the vector 6i+2j-2k into two vectors, one parallel and another perpendicular to i+j+k Homework Equations a\cdot b = 0 \; \text{for two perpendicular vectors} a=\lambda \;b\;\text{for parallel vectors} , \lambda = \text{parameter} The Attempt at a...

Hi, I'm not sure this falls under the homework category, but I posted this here because I think this is more of an insight question than a question for help on how to solve the excercise (which I have). I am reading Sadiku's Elements of Electromagnetism. There is an exercise reads something...

Homework Statement This isn't really regarding any specific question, I am just wondering how do I find the normal component of a vector valued function along a surface S? Stoke's theorem says the integral over a curve of F (dot) dx is equal to the integral of curlF (dot) n dA over the...

For the following, I was wondering if someone could help me determine the imaginary part of the complex number: Im<GVV* - j\omega CVV*>, where V* is the complex conjugate of V. I was thinking the imaginary component would be -\omega CVV*. But I am reluctant on the conclusion, because I am not...

Once again I'm going through all my old homework and taking the notes I should have done in the past, and I am stuck on calculating the components on a Bandpass filter. How would I go about this. I have the answers I just want to know how to find them. Thanks...

I am trying to simulate a square object affected by a force in two dimensions. I can break up the force vector into a vector whose extension intersects the center of gravity for translation and a vector perpendicular to that for rotation. My question is: how does this rotational vector relate...

By the Kronecker product I mean the ordinary tensor product of matrices. In my case I am only interested in square matrices, in fact I want to compute the nonzero elements of products like XXZZXXZZ where X and Z are 2x2 matrices (in fact they are the pauli matrices e.g. the standard...

Hello, I'm a recent college graduate and I am applying to grad school. In order to be permanently accepted into grad school I must have a physics class with lab. While the school does offer a physics course with lab, the university is located an hour and fifteen from the grad school and I don't...

First-time poster here. Homework Statement A little cat, Bella, walks in a straight line, which we shall call the x axis, with the positive direction to the right. As an observant scientist, you make measurements of her motion and construct a graph of the little feline's velocity as a...