Component Definition and 544 Threads

Hey, i want to know the name and function of this component (in attachments)? thanks in advance...

Homework Statement What is the y component of the magnetic field at point O at time 0.227*E-16 s? Given: Frequency: 2.20*E16 Hz Max value of B-field: 4.00*E-8T when t = 0 at point O Homework Equations I think the following two equations could potentially be applied to the problem: B =...

Homework Statement http://img3.imageshack.us/img3/5681/32832.jpg All seven forces have a magnitude |F| = 32 N. w = 10 m, h = 16 m, and d = 15 m. Calculate the z component of the torque relative to position A. Homework Equations T = r*F The Attempt at a Solution Not sure how to...

Hi I am solving a problem at work right now and in order to do so I had to dust off my old physics book. But I've come across something which once made sense but I don't understand it now. If you have a force, say 100lbs, acting at an angle, say 45 degrees, and break it up into its components...

Homework Statement A 66-cm-diameter wheel accelerates uniformly about its center from 120 rpm to 260 rpm rpm in 4.9 s. Homework Equations a_t = r\alpha a_c= r\omega^2 a= a_r+a_t The Attempt at a Solution I have discovered that: \alpha = 3.0 \frac{rad}{s^2} and a_t =...

Let A = (4.6 m, 20^{}o south of east) How do I write this in compnent form? I know if it were (4.6m, North) is would simply be (0,4.6), but otherwise, how would I calculate this?

What is the simplest way to find out if a physical quantity is the component of a four vector? There are opinions that the Lorentz contracted length is not, the Lorentz dilate length being.

Homework Statement An arrow is shot into the air at an angle of 59.4degrees above the horizontal with a speed of 20.9 m/s. (a) What are the x and y components of the velocity of the arrow 3 s after it leaves the bowstring? Homework Equations v(o)sin(theta)t+1/2(a)(t^2) The...

When a force falls on a body, it gets a normal reaction. Conventionally this normal reaction can be given by friction, spring compression, chemical reaction, motion etc... Now...have we ever made such an arrangement that this normal reaction is derived from the stress on a body...nothing...

Homework Statement Attached is the pic of the problem. Homework Equations The Attempt at a Solution I used the inverse of tangent(Ay/Ax) and got 14.2 . I have a funny feeling I am not even close?

A force F of 6 units acts in the direction 30 degrees west of north. An object is constrained to move north-westerly, that is, 45 degrees west of north. (a) Sketch the force vector roughly to scale on a set of axes that has the positive y axis pointing north, and write F using exact values...

Hey guys, I current picked up Fundamentals of Aerodynamics by John D. Anderson Jr. and am having a little bit of trouble understanding some of the equations i am given. This is the first aero book I've picked up so I am not too familiar with aero concepts or terms yet. On page 20...

I'm doing a question on a 3D isotropic harmonic oscillator. At one point I need to find write the radial component of del^2. Lecturer has written \frac{1}{r^{2}} \frac{d}{dr} \left( r^{2} \frac{d}{dr} \right) where the del^2 used to be in the set of equations...

http://img367.imageshack.us/img367/5459/69671206ju9.th.jpg See image above. Point charges A, of +2.0nC, and B, of –3.0 nC, are 200mm apart in a vacuum, as shown by the figure. The point P is 120mm from A and 160mm from B. (i) Calculate the component of the electric field at P in the...

I'm doing a question on a 3D isotropic harmonic oscillator. At one point I need to find write the radial component of del^2. The lecturer has written 1/r^2 * d/dr * (r^2 * d/dr) I don't understand cause it looks like he hasn't actually changed anything, r^2 over r^2 ?

Homework Statement Prove that the number of electrons whose velocity's x-component is between [x,x+dx] is given by dN = \frac{4\pi V m^2 k_B T}{h^3} ln [exp(\frac{E_F -mv_x^2/2}{k_B T})+1]dv_x Homework Equations The Fermi-Dirac Distribution function: \frac{dn}{dE}=\frac{4\pi V...

A skier is moving at 85 km/hr straight down a tall mountain having a slope of 60 degrees. At what rate is the magnitude of the vertical component of his trip decreasing? I just don't understand exactly how to find it. The wording doesn't make sense to me and I don't know where to start.

Homework Statement A ship leaving its port sails due north for 30 miles and then 50 miles in a direction of 60 degrees east of north. At the end of this displacement, where is the ship relative to its port? An army recruit on a training excercise is instructed to walk on a bearing of 6.3...

I have 2 questions, here is the first: Homework Statement A 1.31kg mass attached to a light string rotates on a horizontal, frictionless table. The radius of the circle is 0.402m, and the string can support a mass of 34.6kg before breaking. The acceleration of gravity is 9.8ms^2. What...

...of the four-momentum vector. Why is the energy of a particle identified with p0 instead of p0? Is there a theoretical basis for this, or was it simply observed that p0 is conserved in a larger set of circumstances?

A rocket is fired at an angle from the top of a tower of height 50.0m. Because of the designs of its engines, its position coordinates are of the form x(t)=A+Bt^2 and y(t)=C+Dt^3, where A, B, C, and D are constants. The acceleration of the rocket after 1.00s after firing is a=...

Vplane = 63km/hr at x degrees and direction Vwind = 47km/hr at 211 degrees Vg = unknown speed at 165 degrees find the unknowns my attempt using component method: (Cos 165)Vg = (Cos 211)47 + (Cos theta)63 (Sin 165)Vg = (Sin 211)47 + (Sin theta)63 from here i think I am supposed...

Hey Hello, I am dealing with som Principal Component Analysis Can anyone explain why the first eigenvector of a covariance matrix gives the direction of maximum variability. why this special property of eigenvectors

Hai! Can anybody answer to me why the horizontal component of a projectile motion has no net force?Why is it move with constant velocity ? I know that motion doesn't need force but acceleration need force. But at the time a projectile motion started it motion ,why can it doesn't required...

So many places I've seen components (fancoils and such) with inlets that are let's say 1", but where the pipe leading up it is maybe 1 1/2". Does that make any sense at all? Can pressure drop have something to do with it?

An 18-g rifle bullet traveling 200 m/s buries itself in a 3.6-kg pendulum hanging on a 2.8-m-long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's displacement. What I tried was find the momentum of the bullet, then find the...

This is definition of resistor from Wikipedia. 1. " A resistor is a two-terminal electronic component that opposes an electric current by producing a voltage drop between its terminals in proportion to the current" And this is another mention about Ohm's Law from a diagram of Wikipedia...

Homework Statement Consider a projectile launched horizontally out the window of a tall building at a speed v(0). Determine an expression for the tangential component of the force acting on the projectile in terms of m, g, t, and v(0). Assume that the air has a negligible effect on the motion...

Homework Statement A particle moves in the xy-plane with constant acceleration. The particle is located at r= (2i + 4j)m at t=0 s. At t=3 s it is at r=(8i - 2j) m and has a velocity v= ( 5i - 5j) m/s. a) What is the particle's acceleration vector a? b) What are its position, velocity and...

Hi all, How to measure the tangential component of velocity of receding starsor quasars? I ask this because i think the velocity determined by observing the red shift will give only the radial component...won't Thnx for replying...

Hi all, How to measure the tangential component of velocity of receding starsor quasars? I ask this because the velocity determined by observing the red shift will give only the radial component... Thnx for replying...

When I started looking into this problem I thought it would be rather easy. As I got into it further I found it getting more difficult. I will explain the image first. These components are circular, but I have unwrapped them for simplification. The block on the top is a complete ring. Force...

What is the magnitude of the tangential component of the linear acceleration of a particle that is located at a distance of 50 cm from the axis of rotation when the flywheel is turning at 78.0 rev/min? I took 78 rev/min and converted it to rad/s and got 4.08 rad/s. I then multiplied that by...

A 2.0 m long wire carries a current of 8.2 A and is immersed within a uniform magnetic field B. When this wire lies along the +x axis, a magnetic force F= (-2.2 j)N acts on the wire, and when it lies on the +y axis, the force is F = (2.2 i -4.2k)N. I saw through inspection that B in the y...

Pretty basic question, i think, it's either possible or it's not. Physics practical using an ultrasound generator and receiver components (in separate circuits, with the the generator rigged up to signal generator, and the receiver connected to an oscilloscope to take readings from). For the...

[SOLVED] x and y component problem? Homework Statement http://loncapa3.physics.sc.edu/cgi-bin/plot.png?file=dengjh_sc_1202847653_17793457_plot.data u will need that graph to solve this problem ) A golf ball is struck at ground level. The speed of the golf ball as a function of the time is...

Hi, Shall we make a list of all the websites that are out-there to help you find a componentm that may be an Electrical/Mechanical/Aerospace/chemical/ any component related to any area of engineering... globalspec.com thomasnet.com digikey.com alliedelec.com jameco.com Folks,please contribute...

Homework Statement Here are three displacements, each in meters: d1 = 3.3i + 3.8j - 8.2k, d2 = -1.0i + 2.0j + 3.0k, and d3 = 4.0i + 3.0j + 2.0k. What is r = d1 - d2 + d3 ((a), (b) and (c) for i, j and k components respectively)? (d) What is the angle between r and the positive z axis? (e)...

[SOLVED] Error Calculation Homework Statement A force 500nt is measured with a possible error of 1nt. Its component in a direction 60 deg away from its lnie of action is required. Where the angle is subject to an error of .5 deg. What is the largest possible error in the component...

how can i add or create a new component on multisim v6 such as 2N3055 if i have the datasheet of the component? can anybody help me or support me by a link?? thanks

1. A hammer slides down a roof that makes a 32.0 degree angle with the horizontal. 2. a.) What are the magnitudes of the components of the hammer's velocity at the edge of the roof if it is moving at a speed of 6.25 meters per second? b.) Calculate the components of the hammer's velocity at...

Hello, If I wish to measure the power of a very low-frequency periodic event (~.2Hz) in a voltage-time signal what is an ideal window size to use for power spectral analysis. The activity is very short in duration (~30ms) and occurs every 5-10 seconds. My problem is that I need a relatively...

Homework Statement http://img256.imageshack.us/img256/5530/hwimgxd3.gif A particle of mass 0.450 kg is shot from P. The particle has an initial velocity V_0 with a horizontal component of 30.0 m/s. The particle rises to a maximum height of h = 21.0 m above P. Assume that h[SIZE="1"]2 =...

You are given vectors A= 4.7i - 7.0j and B= - 3.2i+ 6.9j . A third vector C lies in the xy-plane. Vector C is perpendicular to vector A and the scalar product of vector C with vector B is 16.0. What is the x-component of vector C? What is the y-component of vector C? I'm not sure...

I was just wondering what a two component spinor was. Are they the pauli spin matrices? or are they use 2x1 vectors like the spin up and spin down vectors?

You are given a vector in the xy plane that has a magnitude of 85.0 units and a y component of -40.0 units. (a) What are the two possibilities for its x component? ____ ____ (b) Assuming the x component is known to be positive, specify the vector which, if you add it to the original one...

We know that S_x = \frac{\hbar}{2} \left( |+ \rangle \langle - | + | - \rangle \langle+| \right) But what is |S_x ; + \rangle? I think my text says |S_x ; + \rangle = \frac{1}{\sqrt{2}} \left( |+ \rangle + | - \rangle \right) but i don't know how they got this. I feel like this is a trivial...

Components of velocity Homework Statement An airplane travels at 146 km=h toward the northeast. What is the northern component of its ve- locity? Answer in units of km=h. Homework Equations asquared + bsquared = csquared The Attempt at a Solution however i am not sure if u...

Homework Statement A vector in the xy plane has a magnitude of 25 and an x component of 12. The angle it makes with the positive x-axis is: A)26 degree B)29 degree C)61 degree D)64 degree E)241 degree Homework Equations The Attempt at a Solution

Homework Statement Two vectors ahve magnitudes of 10 and 15. The angle between them when they are drawn with their tails at the same point is 65 degree. The component of the longer vector along the line of the shorter is: A) 0 B)4.2 C)6.3 D)9.1 E)14 Homework Equations The...