Component Definition and 568 Threads

Homework Statement Positive charge Q is distributed uniformly along the positive y-axis between y=0 and y=a . A negative point charge −q lies on the positive x-axis, a distance x from the origin Calculate the y-component of the electric field produced by the charge distribution Q at...

Homework Statement At the video length 1:25 , why does the vertical component cancel out ? At the video length 3:55 , why does the horizontal component cancel out? Homework EquationsThe Attempt at a Solution I don't seem to understand this part very well for the vertical and horizontal...

What is the x component of (+2m)ι^? Express your answer with the appropriate units. x = ____ __ * My attempted answer was: +2m What is the x component of (+2m/s)ι^? Express your answer with the appropriate units. vx = ____ __ * My attempted answer was: +2m/s What is the x component of...

Use the component method to add the vectors A and B shown in the figure. Both vectors have magnitudes of 3.55 m and vector A makes an angle of $θ = 28.5°$ with the x axis. Express the resultant A + B in unit-vector notation. I don't understand how my answer is wrong. Isn't it $A + B =...

<< Mentor Note -- ZIP files are a security risk, and the file has been deleted. Please post the individual files instead. Thanks >> I saw a post from 2009 of someone who needed a mixer component to play with. So for learning purposes I zipped a symbol, schematic, and .sub file together for...

Homework Statement Vector A lies in the yz plane 65.0° from the positive direction of the y axis, has a positive z component, and has magnitude 5.10 m. Vector B lies in the xz plane 42.0° from the positive direction of the x axis, has a positive z component, and has magnitude 1.70 m. Find (a)...

We are working on a machine component structure that weighs around 500 kg.This component is fixed inside the train on top roof using 6 bolts..Now the part is we need to design bolt size and no of bolts under worst condition..The acceleration of train may be taken as 0.3g,where g-accn due to...

Hello I need some ideas . there are about nine or ten compounds that are present in water [((H3BO3),Ca(No3)2),KNO3, KH2PO4), (K2SO4, (ZnSO4)]how to separate the compounds ? how to measure quantity of each ? I did google search , I got the HPLC , GC , spectroscopy , but I don't understand...

I want to prove that differentiation with respec to covariant component gives a contravariant vector operator. I'm following Jackson's Classical Electrodynamics. In the first place he shows that differentiation with respecto to a contravariant component of the coordinate vector transforms as the...

Homework Statement The uncertainty in the position of an electron along an x axis is given as 38 pm. What is the least uncertainty in any simultaneous measurement of the momentum component px of this electron? Homework Equations Position uncertainty = h/ delta p (delta p is the uncertainty in...

Homework Statement A string vibrates according to the equation y(x,t) = 2.0*sin (0.16x)cos (750t) , where x and y are in centimeters and t is in seconds. (a) What are the amplitude and velocity of the component waves whose superposition give rise to this vibration? (b) What is the distance...

If a wheel is rolling down a hill without slipping then we know the contact point has zero velocity. Is it also true that the tangential acceleration of this point is zero too?

Taken from Hobson's book: Metric is given by ds^2 = c^2 dt^2 - R^2(t) \left[ d\chi^2 + S^2(\chi) (d\theta^2 + sin^2\theta d\phi^2) \right] Thus, ##g_{00} = c^2, g_{11} = -R^2(t), g_{22} = -R^2(t) S^2(\chi), g_{33} = -R^2(t) S^2(\chi) sin^2 \theta##. Geodesic equation is given by: \dot...

Hello, I'm wondering, is it possible to define an operator that gives information about the "distinctness" of superposition components? As a simple example, imagine that we have two particles. Let |3> designate the state in which they are 3 meters apart, let |5> designate the state in which...

Homework Statement http://postimg.org/image/tlvhadljz/ I am trying to find the component of weight perpendicular to the bar. Homework EquationsThe Attempt at a Solution I tried as shown and I got mgcos(theta) but I am supposed to be getting mgsin(theta)

Homework Statement Use the component method to add the vectors vector A and vector B shown in the figure. The length of vector B is 3.25 m and the angle θ = 28.5°. Express the resultant vector A + vector B in unit-vector notation. Homework Equations x = rcos y = rsin The Attempt at...

hi! when I send a square wave to a digital oscilloscope it detects the signal + dc signal. I wanted to know why. I was thinking about internal resistance of coaxial cable i was using. signal got out of an oscilloscope/wave generator and in channel A of the same oscilloscope/wg. It was +-1...

Does the magnetic component of light emitted by an antenna arise from the effects of length contractions or from the fundamental magnetic moment of the electron?

Homework Statement [/B] A silicon component is irradiated in an accelerator. The oxygen ion beam is pointed in the direction of the shortest dimension of the sensitive volume of the device. The energy required for producing an electron/hole pair in silicon is 3.6 eV. It is found that the...

Homework Statement Design a component that uses a 4-to-1 multiplexer to choose between one of four different operations to get the result from. Each of the operations and the multiplexer should be behavioral design in their own modules / files to be used in the overall component design as...

What methods could I utilise to find the individual values of the components - resistor, inductor and capacitor - of a series RLC circuit using an oscilloscope, signal generator and 10 ohm resistor. Where each component can be isolated in order to find the voltage etc. I've already found the...

Let A(a, b, c) and A'(a′,b′,c′) be two distinct points in R3. Let f from [0 , 1] to R3 be defined by f(t) = (1 -t) A + t A'. Instead of calling the component functions of f ,(f1, f2, f3) let us simply write f = (x, y, z). Express x; y; z in terms of the coordinates of A and A, and t. I thought...

Homework Statement Hi, I need help in solving question c) (a pendulum) The required data, problem and relevant equation is in the pictureThe Attempt at a Solution I am not sure how to solve it but here are my thoughts: since mg is working at j y(t)j= mg does that mean K(r-L0) x(t) direction? I...

Homework Statement [/B] Here are two displacements, each measured in meters: A. 4i+5j-6k B. -1i+2j+3k What is the component of A that is perpendicular to the direction of B and in the plane of A and B.? Homework Equations The book gave me a hint to use this equation...

Given $\overline{A}=-4a_{x}+2a_{y}+3a_{z}$ and $\overline{B}=3a_{x}+4a_{y}-a_{x}$. 1.Find the vector component of A parallel to B 2.Find the vector component of A perpendicular to B my solution for 1. $\overline{A}\cdot\overline{b}=-1.372$...

Why is better to use the standardized data using the correlation matrix than say converting data into just similar units. Like say I had data that measured car speeds measured in seconds for some data and the other data measured in minutes. Why would it be better just to measure the data using...

Homework Statement [/B] A belt moves over three pulleys at a constant speed v0 [ft/s]. Knowing that the normal component of the acceleration of the portion of the belt in contact with pulley B is aB,n=90 [ft/s2 ]. Determine: (a) speed of the belt, v0 [ft/s], and (b) normal component of the...

If I'm right, all electronic component works on quantum probability. I was thinking all these electronic component works on classical physics only. Because probability will not produce 100% result, as and when desired. Thank you.

Homework Statement Prove in a current carrying wire the magnetic field only has a theta component. Homework Equations ∇ ⋅ B = 0 (dive of magnetic field zero, 2nd Maxwell Eq) ∇ x B = μ J (Ampere's Law, 4th Maxwell Eq) Cylindrical symmetry means B field only dependent on r (distance from z...

Let w = (w1, w2, w3) wrt to the body frame of a rigid body, where the body frame is right-handed orthonormal. I have gathered 2 definitions of w from different sources and I am confused at how they connect to one another. One is that the RB rotates about w through its CoM at rate abs(w), the...

We have ##R^{1}_{212}## as the single independent Riemann tensor component, and I'm after ##R##. From symmetry properties and contracting we can attain the other non-zero components. The solution then states that ##R_{11}=R^{1}_{111} + R^{2}_{121}=R^{2}_{121}## . I thought it would have been...

Hi! (Smile) Suppose that we index the components of the elements of $\mathbb{Z}_p$ by subscripts. Indexing the terms of the sequence by superscripts in parentheses$x^{(i)}$ is a term of the sequence, and $x^{(i)}_k$ its $k$-th component. So, if we have a sequence in $\mathbb{Z}_p$, it will be...

It is widely believed that there are three components of disjoining pressure: the dispersion component (Van der Waals), the electrostatic component and the structural component. For the first two, there are some accepted formulations for calculation. However, I cannot find any equations for the...

Homework Statement Consider the real scalar field with the Lagrangian \mathcal{L}=\frac{1}{2}\partial_\mu \phi \partial^\mu \phi - \frac{1}{2} m^2 \phi^2. Show that after normal ordering the conserved four-momentum P^\mu = \int d^3x T^{0 \mu} takes the operator form P^\mu = \int...

1. Homework Statement The millennium eagle passes between a pair of asteroids, as shown. If the mass of the spaceship is 2.50 x 10⁷kg and the mass of each asteroid is 3.50 x 10¹¹kg, find the net gravitational force exerted on the millennium eagle at point (A) and point (B). Treat the asteroids...

I have very little experience with electronics so I have come here to hopefully gain your insight into an issue that is currently being discuss amongst people who seem to have no clear answers. The circuit I am interested in utilizes a 9V battery run through a LM334Z current regulator, with a...

Hello, As a project I am making a wireless window blinds controller. It will be a motor turning the handle of the blinds. It may or may not use bluetooth and or wifi. It will be wireless through some means though. The device does not raise or lower the blinds.I measured a peak torque of 2 ft...

Some calculators say (-2)2/3 is equal to ##-\frac{1}{2^\frac{1}{3}}+i\frac{3^\frac{1}{2}}{2^\frac{1}{3}}## while others say its equal to ##4^{\frac{1}{3}}## i.e. ##|-\frac{1}{2^\frac{1}{3}}+i\frac{3^\frac{1}{2}}{2^\frac{1}{3}}|##. I think I am right to imply from above that (-2)2/3 does have an...

Homework Statement In certain hydrodynamic flows the velocity of a liquid is given by v = -grad φ, where φ is referred to as the velocity potential. The potential given by: 'equation' corresponds to flow around a solid sphere of radius a. U is a constant. Determine the velocity of the...

Homework Statement A physics class researching projectile motion constructs a device that can launch a cricket ball. The launching device is designed so that the ball can be launched at ground level with an initial velocity of 28.0 m s–1 at an angle of 30.0 degrees to the horizontal. Homework...

Homework Statement Given ##\vec{A}=2\hat{i}+3\hat{j}## and ##\vec{B}=\hat{i}+\hat{j}##.Find the component of ##\vec{A}## along ##\vec{B}##. Homework Equations ##\vec{A}.\vec{B}=ABcosθ## where θ is the angle between both the vectors. The Attempt at a Solution I attempted the question...

Hello, I'm currently going through Agrawal's book 'Nonlinear Fiber Optics' and got stuck with some mathematical cosmetics (pp. 40). It is the substition of: \vec{P_L}(\vec{r},t) = \frac{1}{2} \hat{x} \left(P_L \exp{(-i \omega_0 t)} + c.c.\right) into \vec{P_L}(\vec{r},t) = \epsilon_0...

Homework Statement Show that if the displacement of the waves on a membrane of width b is given by the superposition z=A_1\exp^{i(\omega t-(k_1x+k_2y))}+A_2\exp^{i(\omega t-(k_1x-k_2y))} with z=0 when y=0 and y=b then the real part of z is z=2A_1sin(k_2)sin(\omega t-k_1x) where...

I am in the process of reverse engineering an electrical control box for a spa heater, and have stumbled upon a component that I have not encountered before. There are two of these components in the system. I was not able to find any information from the part numbers. The coil leads me to...

I've learned that the horizontal component is F cos angle not F sin angle, but I'm looking right now into the aqa physics a student book from nelson thrones, chapter 2.3 page 27, and it says that the horizontal components going to be made up of sin and the vertical out of cos... This is about...

Homework Statement A pendulum consists of a disk of mass M1, and a slender rod of M2 (which happens to be 0kg),. Determine the components of reaction that the pin O, exerts on the rod just as it passes the horizontal postion, at which time its angular velocity is ω. Know we know M1 =...

Homework Statement Find the work done by the force \vec{F}=6\hat{i}+8\hat{j} if the object starts from the origin, moves along the x-axis to the point (1,0), then moves in the y direction to the point (1,2). Find the work if instead the object moves diagonally from the origin to the point...

I have a list of scores between 0 and 1 generated by an information retrieval system - 1 being very relevant and 0 being completely non-relevant. I do not know whether the scores correspond to relevant or non-relevant items or not but I do know that the distribution of scores is generated by a...

I am in the design phase of a lightweight electric city vehicle with a capacity of 15kWh. I am at a stage where I am moving elements like Electric motors, tranmission, DC-DC converters, Inverters, Battery charger and battery pack in a CATIA software model. In-order to cater to the wide-range of...

what is the green component? what is the name?