Components Definition and 911 Threads

Hey, I'm just wondering if i need to find scalar components for a magnitude on the z-axis, do i go about the same way i would with regual x,y compenents, or is there something else that i need to do?? and just for clarification, the z-axis is the one that makes it 3D, like it's 'popping'...

Hey, In the question that I'm working on it says to resolve v1 and v2 into rectangular scalar components but i have no idea what a rectangular scalar component is and i can't find it in my textbook. if anyone could tell me what they are that would be very helpful! thanks

the question i got was: will the horizontal and vertical components of a vector at 45degrees to the horizontal be larger or smaller than the vector? By how much? so far this is what i understand the vertical and horizontal components form a right angle and the vector is the line in the...

So the problem goes: A proton, with rest mass 1.67x10^-27 kg, is moving at v=.9c (where c= speed of light) in the positive x direction, relative to the reference frame of a physics laboratory. Then, a constant force F=(-3.00 X 10^-12)i + (5.00 X 10^-12)j is applied to proton a) find x and...

My professor explained this problem but he said that it was so simple so he stopped and we all feel dumb. Please help if anyone knows how. Thanks. A light plane attains an airspeed of 330 km/h. The pilot sets out for a destination 800 km to the north but discovers that the plane must be...

I'm really having difficulty understanding how to approach problems in my physics class due to 1. never having taken physics before, and 2. having a professor that I cannot understand (english is not his native language, and he speaks very soft/fast). We're now doing tension in class, and I'm...

Let the angle theta be the angle that the vector A makes with the +x-axis, measured counterclockwise from that axis. Find the angle theta for a vector that has the following components: A_x = -4.50m A_y = -3.30m Using the calculator, I got arctan(-3.30m/-4.50 m) = 36.25 degrees...

I have a problem that I can't figure out what formula to use. It states: In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0588 s, during which time it experiences an acceleration of 290 m/s2. The ball is launched at an angle of 48.5 °...

I'm suppose to find the ordered pair (x,z) for components of the vector R(AB), which I am suppose to be able to find by R(AB) = R(B) - R(A). http://server6.theimagehosting.com/image.php?img=phytest.jpg So far, I solved for the components of the vector of B, and the vector of A. Vector...

Ok... I am asked how a vector's components transform under a translation of coordinates. From mathworld: Does that imply that the components used to describe the vector remain unchanged? If you and I see a car drive east at 50 Km/h and you are standing at what you call the origin, and I am...

Hey! New to this site, started taking physics yesterday and already need some help:frown: 1)My textbook is very complicated, is there an easy way that anyone can explain what scalar components are? 2)I did a lab with a force table and 3 pulleys. You add weight to one pully to even out a...

I NEED A [SIZE="3"]DATASHEET OR LIST OF ABOUT [SIZE="3"]50 EACH OF [SIZE="3"]RESISTANCES, DIODES, CAPACITORS, ZENER DIODES AND ICs WITH S[SIZE="3"]PECIFICATIONS LIKE VOLTAGE, CURRENT AND POWER RATING, COMMONLY USED IN ELECTRONICS LABORATORY OF COLLEGE LEVEL I NEED IT [SIZE="3"]URGENTLY WITHIN...

Hi, I'm new here. can somebody put here an a schematic of Class AB, D,G or T. I need an audio amplifier that work with bjt and mosfet simultaneously, i think that kind of amplifier is class g, but I'm not sure,for example i saw an 5000w amplifier with 2sc5200 and his pnp pair working with...

So in my physics class we built cardboard chairs as a project. Part of the assignment is to draw in all of the stresses, and then do calculations to see how much stress exists in all of the structural members. One of my main structural members is a triangle, its peak attaches to the main panel...

How many independent components are there to describe the EM field? The six in the field tensor, the four in 4-vector potential or the two when Coulomb gauge is being used? thanks

Hi i am need of some help with a Mechanical Principle question. The Question The maximum load in a tensile test on a mild steel specimen is 94kN. If the test piece is 12mm diameter calculate the ultimate tensile stress. (u.t.s) What is the working stress and greatest allowable load on a...

Hello, I'm working on a problem in topology. I'm supposed to find the number of connected components of the group of 2x2 invertible upper triangular matrices over R which i shall call B_2. I've tried it a bit, but I don't know for sure if my approach (and answer) is correct. Since any...

what are the components of blown film coextrusion die (three to five layers)

Can anyone help me with this question? I would appreciate it. A horse pulls a barge of mass 5000 kg along a canal using a rope 10 m long. The rope is attached to a point on the barge 2m from the bank. As the barge starts to move, the tension in the rope is 500 N. Calculate the barge's initial...

How is the vector g turning into the scalar g? What am I missing that is allowing us to represent g as a scalar quantity and no longer a vector quantity? When going through the algebra to find mg_x, (component of gravity in the x-direction) I don't see how it turns into a scalar of 9.8...

how do i add up 3 different vector components... i tried drawing them up in scale but had NO LUCK...some one please help.

Hello, I'm trying to understand circular motion more intimately. Let's say I have a 1.8 m long piece of twine that I attach to my ceiling and attach a rock with a mass of 650 g from the hanging end. Let's say (with my superhuman coordination) I manage to get the rock spinning in a perfectly...

A boat sails in a straight line 20km [N30°E]. What are the components of its displacement to the north and east? the answers given are 17 km [N] and 10 km [E], but using the formulae Ay = A Sin σ and Ax = A Cos σ, I've got the values mixed up... could it be because I've drawn it wrong? I've...

a particle A is constrained to move in the circular slot of CD.knowing that t=0 the particle A starts from rest and moves so that its speed increases at a constant rate of 0.8in/s^2.Determine the magnitude of its total acceleration when t=2.pls help... thanx...

How do i find the number of independent components of the Riemann curvature tensor in D space-time dimensions. One is given that the Riemann tensor is an (2,2) irreducible rep of GL(4, \mathbb{R}) and obeys Bianchi I R_{[\mu\nu|\rho]\lambda}=0 Been trying this problem for 3 days and...

Hiya all, I'm stuck on a physics question set for homework. It asks "draw vector diagrams to scale to show the vertical and horizontal components of the velocity of the tip of the hand at quater-past, twenty past, twenty-five past and half past the hour." The hand is 20cm long so using the...

I have a problem that includes an acceleration vector 'a' located in the 3 quadrant and it makes an angle (theta) 30 degrees to the Negative Y axis. The solution manual shows the the vector resolved like a = (12.0 sin 30 m/s^2) i - (12.0 cos 30 m/s^2) j Why take the sin of 30 for the...

1.) x(t) = a + b*t y(t) = c + d*t + e*t*t a= 70 cm, b=38 cm/s, c=78 cm, d=17 cm/s and e=-490 cm/s/s What is the initial velocity of this projectile? I approached it assuming that the angle is 45 degrees. So I used the pythagorean therom to solve for the hypotnuse given that we...

Hello, I need help on deriving equations for the moon's acceleration around the earth. I've found that the total acceleration is a=Gm/r^2 (G is gravitational constant, m is mass of moon and r is the Earth to moon distance) what i need to do is split this into its x and y components, and derive...

I know the answers to these problems but I'm having trouble obtaining them: 1)To model a spacecraft , a toy rocket engine is securely fastened to a large hockey puck, which can glide with negligible friction over a horizontal surface, taken as the xy plane. The 4.0 kg puck has a velocity of...

A person is going for a walk and follows the path shown (the red lines). What is the person's resultant displacement, measured from the starting line? Ok, I can solve this using geometry, but I need to knkow how to solve it via physics. The first 2 vectors can be written 100mi+300mj, I just...

I don't know how to start off. What steps do I have to take to solve this problem? I am completely lost.

Okay, here's a problem from my Statics class. Just dealing with 2 vectors, their direction and magnitude given--need to find the same for the resultant vector. If I break it down into X and Y components, I can do it quite easily...but that's not the way he wants it done. It has to be found...

Hi all! Thanks for suggesting some good fluid mechanics and thermodynamics books. I've borrowed them from my library and going to read through then. I would soon need to run a practical project on designing gear boxes. The bad thing is that I am really an idiot in those machine components...

hi all got some problems with vectors so waswondering if anyone can check what I've done is correct thanks question1. find the vector component of 2i+j-k in the direction of i-3j+2k basically i use the rule a=(v*w^)*w^ w^= i-3j+2k / sqrt(14) thus v=2i+j-k therefore a=(2i+j-k)*(...

Hi. Does anyone know of a proof that explains why you can't mix x and y components of vectors? For example you know how if you are solving a physics problem you have to break things up into x any y components (eg: velocity). My physics teacher wanted us to find a proof online that explained why...

Attached is a word document where I am setting out the Ricci tensor components to solve for the terms in the line element equation and get to the Schwarzschild solution. I am overlooking something as I have a sign off in the Ricci components in comparison to the many texts and literature I have...

Spheres A (mass 0.020 kg), B (mass 0.030 kg), and C (mass 0.050 kg), are each approaching the origin as they slide on a frictionless air table. The initial velocities of A and B are 1.50 m/s and 0.50 m/s. All three spheres arrive at the origin at the same time and stick together. a) What must...

i read that Synthetic Pyrethroids are referred to as the "New Age Insecticides". Can anyone explain what are the some of the major chemical components of these insecticides?

pyschoacoustically is it important wether cos or sin harmonic components are used in sound synthesis ?

Why do components and basis vectors transform under Lorentz transformation differently (inverse Lorentz for basis), whereas for orthogonal transformation components and basis are transformed by same matrix? Thank you

I am having a problem with this question. I can't figure out how to approach it. A solid sphere of mass m and radius r rolls without slipping along the track. it starts from rest with the lowest point of the sphere at height h above the bottom of the loop of radius R, much larger than r...

info of different chemical components? are there any places where i can get the info of chemical properties of different chemical components? thanks.

A commuter airplane starts from an airport located at the origin. first it flies to city "A" located a =110km away from the airport in a direction alpha = 36 degrees North of East. Next it flies b =61.8km beta=38 degrees west of north to city "B". Finally it flies c=168 km due West to city "C"...

I have a question. Vector A has x and y components of -20cm and 15 cm, respectively; vector B has x and y components of 10.9cm and -20 cm, respectively. If A - B + 3C = 0, what is the x component of C? I found out that C = -0.73 cm but that's not what the question is asking.

Hi. I'm a newb here. I've got a problem about components of force. Water applies force to the walls of container as it does to the bottom. It has only horizontal compenent when the container is straight (walls parallel) but what about in containers with inward and outward sloping walls? In which...

The speed of an object and the direction in which it moves constitute a vector quantity known as the velocity. An ostrich is running at a speed of 17.0m/s in a direction of 68.0 degrees north of west. What is the magnitude of the ostrich's velocity component that is directed at A. due north...

I just don't get this problem one bit...i've tried drawing a picture too and it doesn't help ...here it is if someone can help! The eye of a hurricane passes over Grand Bahama Island. It is moving in a direction 60 degrees north of west with a speed of 41 km/h. Three hours later, the course...

If you express a wave as a Fourier series like: z(x,t)= \sum _{n=1} ^{ inf.} A_n cos(nk_0 x - \omega (n) t ) Then what is the physical interpretation of a non-zero imaginary part of a component amplitude?

I was told to solve this non graphically. Can this problem be solved non graphically? If so, what are the appropriate steps involved. Really need to understand this stuff. Vector A forms an angle θ with the positive part of the x axis. Find the components of A along x and y if: a. |A| = 8...