Component Definition and 568 Threads

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 h2 = 62.0 m...

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...

Homework Statement Hey, I had a question about resolving the z-component of a vector. Lets say that there is a problem that asks us to find the resultant force vector in three-dimensions. I know that the the resultant force vector, \vec{F}_{R} is given by the sum of its vector...

Homework Statement A magnetic field has these components: x: B = 0.056 T y: B = 0.046 T The particle has a charge of +6.5e-5 C, has a velocity of 2.6e3 m/s, and is moving along the z axis. Questions: 1: What's the magnitude of the net magnetic force on the particle? 2: What's...

Homework Statement An electron has a velocity of 1.63×104 m/s (in the positive x direction) and an acceleration of 1.98×1012 m/s2 (in the positive z direction) in uniform electric and magnetic fields. If the electric field has a magnitude of 19.8 N/C (in the positive z direction), what is...

Where is the part of the human brain located that is responsible for the sensation of pain?

Homework Statement At an air show, a jet plane has velocity components v_x = 625 km/h and v_y = 415 km/h at time 3.85 s and v_x2 = 838 km/h and v_y2 = 365 km/h at time 6.52 }. 2. Questions Question A. For this time interval, find the x component of the plane's average acceleration. {I have...

Homework Statement Give examples to show Path components need not be open or closed. I assume it means give one that is not open and one that is not closed. So one a path component that is open (to satisfy not closed) and one that is closed (to satisfies not open). Or is the question asking...

Homework Statement An 18-g rifle bullet traveling 230 m/s buries itself in a 3.6kg 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. Homework Equations MaVa1 + MbVb1= MtVt2...

If I have e^{i \mathbf{q_\perp \cdot x}} what does it mean?Specifically what does the \mathbf{q_\perp} mean? thanks

1. A mixture at T=300 K and P=100 kPa is made up of .1 oxygen, .2 carbon dioxide, and .7 Nitrogen. It is then heated to 300 kPa and 500 K. Find the mass of each component I originally thought using PV=NRT, ideal gas but there doesn't seem to be enough givens. Can you also find the molar...

Homework Statement Consider the four charges in Figure P25.46 http://i137.photobucket.com/albums/q208/infinitbelt/p25-46.gif , in which d = 3 cm, q = 4 nC, the +x-axis points to the right, and the +y-axis points up. What is the force on the 1 nC charge at the bottom? Give your answer in...

hiya If 'b' is the length of a wire, and 'I' current running trough it, then if put a wire inside magnetic field ( not perpendicullary and also not parallel to magnetic field lines, but some angle in between the two ), then magnetic force on a wire will be: F = I * b * B * sin[angle] where...

Does anyone know the name of the big box that you can connect to a circuit, to stop the ammeter and voltmeter readings jumping around?

Please excuse my total ignorance but can someon explain to me how the following part of a certain proof makes sense We want to show that Fk+1 ≤ (7/4)^(k+1). Consider fk+1 = fk + fk−1 (We can do this as k +1 is at least 2; see the comment following the basis) < (7/4)^k +(7 /4)^(k−1) (by the...

The problem is stated as follows: A sailboat is traveling east at 4.10 m/s. A sudden gust of wind gives the boat an acceleration a=(0.500 m/s2,40.0° north of east). What is the boat's speed 5.90 s later when the gust subsides? I've tried breaking it into component vectors, but no luck...

(NOTE: I am doing this to possibly re-enter a graduate program and earn a PhD. This is not being done for class.) DJ Griffiths, Prob. 2.6, solved. My question is about the parallel component of the \vec{E}-field. If you integrate over cylindrical coordinates, then by symmetry this component...

I was thinking about a question where when 2 similar objects with different masses were dropped from the same height that they would hit tthe ground at the same time. It then occurred to me if the same would happen if the objects were given a horizontal component. i.e if they were rolled off an...

Can a vector have a component whose magnitude is greater than itself?

The question is the title of the thread. I am curious about the matter, because i read that a lot of personality traits have an genetic component.

I am wondering if anyone has a good source for electonic components (resistors, capacitors, inductors, transformers, switches, etc.). I was an electronic's technician in the military and we order all of our equipment through the federal supply system. Anyway's now I'm just an engineering...

I'm just thinking that since light is an electromagnetic wave, it must move sinusoidally. So, wouldn't it just be going forward at the speed of "c", while the wave itself would be going up and down as well? And if that's the case, wouldn't the actual speed of the photons be much faster if the...

hi For car to be able to drive trough banked curve on the road with no friction, the vertical component of a normal force must be equal in size but opposite in direction to the force of gravity. Horizontal component F[h] F[h] = m * g * tan(alpha) = m * v^2 / r So there is only one...

I am having some trouble figuring out where to start with this problem: The force on a particle of mass m is given by: F= 26i – 12t^2j where F is in N and t in seconds. What will be the change in the particle’s momentum between t=1s and t=2s? Can anyone point me in the right...

I just gave a try to a statistical excel add-in and found PCA and FA quite interresting. However, I don't see where are the differences between these two analysis, except for the layout of the results. Additionaly, I see the link with multiple regression, but I don't see the link precisely...

A block weighing 95.0 lbs is on a 34.5 degree plane. Find the force parallel to the plane, the acceleration if there is no friction, the coefficient of friction if the object is just at the point of sliding, and the acceleration if coefficient of sliding friction is .350. Do you find the x...

HELP ASAP--vectors You are given a vector in the xy plane that has a magnitude of 90.0 units and a y component of -55.0 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...

Solve for x 3sin(x+10)=4cos(x-10) I tried changinf everything into tan nothing out. I tried expaning the brackets and collecting like terms, that didnt work out either. Please help.

During baseball practice, a batter hits a very high fly ball, and then runs in a straight line and catches it. Which had the greater displacement, the player or the ball or neither? Explain. I think it's neither but I'm not sure and i don't understand why. could someone please explain...