What is Direction: Definition and 1000 Discussions
One Direction, often shortened to 1D, are an English-Irish pop boy band formed in London, England in 2010. The group are composed of Niall Horan, Liam Payne, Harry Styles and Louis Tomlinson; former member Zayn Malik departed from the group in March 2015. The group signed with Simon Cowell's record label Syco Records after forming and finishing third in the seventh series of the British televised singing competition The X Factor in 2010.
Propelled to global success by social media, One Direction's five albums, Up All Night (2011), Take Me Home (2012), Midnight Memories (2013), Four (2014), and Made in the A.M. (2015), topped charts in most major markets, and generated hit singles including "What Makes You Beautiful" (their first number one on the UK Singles Chart, and the highest debut for a British act on the US Billboard Hot 100 since 1998), "Live While We're Young", "Best Song Ever", "Story of My Life" and "Drag Me Down". After the release of Four, One Direction became the first band in the US Billboard 200 history to have their first four albums debut at number one. Their third album, Midnight Memories, was the best-selling album worldwide of 2013.Considered teen idols, One Direction were often subject to fan hysteria. They embarked on four world tours, two of which were all-stadium. The band's Where We Are Tour, in support of Midnight Memories, was the highest-grossing concert tour in 2014, the highest-grossing tour by a vocal group in history, and the 15th highest-grossing concert tour of all time, grossing $290.2 million (unadjusted for inflation). The band went on hiatus in January 2016, allowing all members to pursue other projects.As of 2020, the band have sold a total of 70 million records worldwide, making them one of the best-selling boy bands of all time. The band have won nearly 200 awards, including seven Brit Awards, four MTV Video Music Awards, six Billboard Music Awards, seven American Music Awards (including Artist of the Year in 2014 and 2015), and 28 Teen Choice Awards. In 2013, they earned an estimated $75 million, becoming the second highest earning celebrity under 30 according to Forbes. As the world's best-selling artist of 2013, the group was named the Global Recording Artist of the Year by the International Federation of the Phonographic Industry. In 2014, Billboard named the band "Artist of the Year". Forbes ranked them as the fourth highest-earning celebrities in the world in 2015, and second in 2016.
This is more of a user experience question. I'm starting to remake a game (see http://playclassicsnake.com/play ) that works on mobile just as well as desktop. On desktop, one controls the snake (the lime green links) with the arrow keys, but I need a different way to do it on mobile. I tried...
Hello! :o
I want to prove the following lemma:
$t^n-1$ divides $t^m-1$ in $F[t, t^{-1}]$ if and only if $n$ divides $m$ in $\mathbb{Z}$.
I have done the following:
$\Leftarrow $ :
$n\mid m \Rightarrow n=km, k \in \mathbb{Z}$
$t^n-1=t^{km}-1=(t^m)^k-1=(t^m-1)(t^{m(k-1)}+\dots +1)$
So...
Hi
An exercise asks to show $ \int_{a}^{b}f(z) \,dz = -\int_{b}^{a}f(z) \,dz $
I can remember this for real functions, something like $ G(x) = \int_{a}^{b}f(x) \,dx = G(b) - G(a), \therefore \int_{b}^{a}f(x) \,dx = G(a) - G(b) = -\int_{a}^{b}f(x) \,dx $
I have seen 2 approaches, either...
Homework Statement
A sailing boat moves at 12ms-1 due North then changing direction to north-west and traveling at a speed of 5.5ms-1 . Determine the magnitude of change in velocity n its direction.
Homework EquationsThe Attempt at a Solution
Homework Statement : [/B]I just have a quick question about direction of velocity in solving for energy conservation problems. Since energy has no direction, do different angles ever affect the outcome? Like say in a collision where a truck hits three other vehicles and sends all three in...
When a tree grows even at an angle on a hill side it mostly remains vertical . What is at play here to cause the vertical direction of growth ?
Thank you,
Pat Hagar
How do you know what direction to make vectors A, B and C face when formulating your equation? I guess its unknowable really isn't it?
therefore for the sum of forces in x direction you'd just say C + P + B_x = 0
How about if it is knowable? E.g. if B didn't exist and therefore you'd know C...
Homework Statement
I'm right now trying to solve a question concerning the direction of an electron in an electric field.
There is the picture I added given and you know that there is a homogeneous electric field.
The blue line represents the movement of an electron (there is no movements up...
Hi guys .. Glad to be here in this forum of physcs fans.
This is the classical problem of cart HORIZONTALLY pulled by a rope that wraps around a pulley and it's pulled VERTICALLY by say, the same mass as the cart (yeah T1 = T2 horizontal and vertical tensions .. = in MAGNITUDE BUT NOT IN...
Hi,everyone,I just got a deep-thinking question about time.
I s time a vector?IF it is,what is the direction of it?My personal view is the direction of time is every direction
or no direction(there is no direction in mutil-dimesion of the universe?) or no inclonclusion?
Hi, this problem is making my head ache.
Lets say that an object is moving at a decelerating speed(-1m/s) starting on 4m/s towards east and stopped after 4 seconds.
(There are no friction.)
After 4 seconds, the object would have 0 speed, no direction and 0 velocity etc.
Question 1 : Is the...
Homework Statement
Thewheel is rotated in the anticlockwise direction...The correct reaction force is drawn using the blue pen . I don't understand why the reaction force isn't directed to the left ? which is drawn using the red colour ?
IMO, the red colour should be correct because the...
Homework Statement
As you can see , the writer state that the direction of normal reaction force(R) is acted upwards , I have another book state that the normal reaction force (R) is acted downwards , which one is correct ?
Homework EquationsThe Attempt at a Solution
[/B]
We know that the so-called displacement current is defined as
$$i_d=\varepsilon_0 \, \frac{\partial\Phi_e}{\partial t}.$$
Like regular current which is the movement of charges, $i_d$ has a direction, even though it's technically a scalar. How do we find its direction?
Homework Statement
Hey everyone! I'm new to these forums so I apologize in advance if I do something wrong! I just had a quick question about the momentum in one direction equation m_1v_1o +/- m_2v_2o = m_1v_1f +/- m_2v_2f; I'm just not sure when I'm supposed to add these values and when I'm...
http://tutorial.math.lamar.edu/Classes/CalcIII/CurlDivergence.aspx
In the above link, in the 2nd to last blue box on the page (where it tells how to solve a line integral with respect to a vector field using the curl), it says that the line integral of vector field F with respect to r (with an...
I am working on a simulation but i want to put a constraint that my shaft rotates clockwise only, If a force is applied on anti clock wise direction, it doesn't go back.
Working on MSC adams software.
Thank you in advance for any kind of advice anyone can help with.
Hi
I've been learning about angular momentum and torque, and today I learned that torque actually has a direction that is not simply the direction of rotation.
I saw about the right-hand rule to establish which direction the torque is going in.
My question is - if an object is rotating, will...
Homework Statement
Homework Equations
-
The Attempt at a Solution
When the positive particle enters the electric field it will turn and move toward the negative plate. So
a) the displacement vector will change direction until it's directed toward the negative plate, parallel with the...
I'm currently pursuing a career in Automotive engineering in Australia, I'm hoping for some advice such as educational requirements, how to get into automotive engineering through a bachelor or master of mechanical engineering, etc.
Hi all, I want to make sure of a particular information. Length is contracted only in direction of motion. If I am on a spacecraft moving with high speed, I shall see the universe is contracted just in front of me that I am going to, but there would be no contraction If I look to regions that...
Greetings, PF! I have some questions regarding the problem I attached below. It is some sort of Couette flow variation. It's not homework, I'm just learning the basics of TP on my own. I fully solved the problem with the Navier-Stokes and continuity equations, using some assumptions in order to...
I'm studying for the Physics SAT Subject Test using The Princeton Review (2011-2012). There's this motional EMF problem about a rod sliding to the right along a u-shaped wire in a uniform magnetic field that's going into the page and the current moving counter clockwise. Problem is: I can't...
Homework Statement
Use Lenz’s law to answer the following questions con-
cerning the direction of induced currents. Express
your answers in terms of the letter labels a and b in
each part of Figure P31.22. (a) What is the direction of
the induced current in the resistor R in Figure P31.22a
when...
If drift velocity of electrons changes in AC, how does electricity flow through a circuit to then lose potential energy to the devices in the circuit?
Also considering the change in direction, does that mean that the live wire and neutral wire also switch roles in AC mains? I am very confused...
Homework Statement
What is E in Magnitude and Direction at the center of the square of (fig. 3-7). Assume that q = 10x10-8 C and a = 5 cm
Now I have am not well versed with vectors, I don't like them and they don't like me.
I can not figure out the directions the magnitudes move in.Homework...
Homework Statement
A mass is at rest on a spring on an inclined plane. Which way would I draw the force of friction on a force diagram?
Homework Equations
Fnet=0
F=-kx
The Attempt at a Solution
It could point either up the incline, or down the incline.
[/B]
Homework Statement
u = velocity
B = magnetic flux density
Homework Equations
∫ (uxB)⋅dl
The Attempt at a Solution
From my understanding, the direction of dl depends on the resulting direction of (uxB). How will I know if my dl is in positive or negative?
Hi all,
Does anyone know how to get the program: FEMM (Finite Element Method Magnetics) to output the magnetic field strength and direction in a data file?
The program tells me the magnetic field in an output window anywhere i click my mouse on. However, I would like it to output the magnetic...
Homework Statement
2. Homework Equations
Elastic collision: KE conserved
The Attempt at a Solution
I don't think there's really anything to work out...why would the 2M block move right as well?
One thing which puzzles me is why do waves move in a direction? A spring oscillates up and down, but a wave oscillates and moves forwards. Why does it move in the forwards direction and not randomly backwards? Thanks for any answers!
1. Homework Statement
I have to minimize the function (x1-1)2+x23+x1x2 by the steepest descent method. The initial point is [1,1]T
Homework EquationsThe Attempt at a Solution
The gradient of this function is ∇ƒ(x1,x2)=[2(x1-1)-x2 3x22-x1]. This...
Hi guys
I'm not sure if this is the right area - this is my first post - but it seems like it fits so
My question is, is there a way to get the direction of force on a charged particle from a magnetic field without using the right hand rule? What I'm looking for would be a way to just think...
My question is the following. A ball is initially skidding and eventually starts rolling on a flat plane with friction, and later comes to a halt. Which direction does friction act? (see diagram)
If friction acts to the right, then the translational speed will go up, and that's not right...
I know that when a spacecraft is in orbit, the direction in which the spacecraft produces thrust affects its orbit.
If the thrust is tangent to the orbit, the orbit's shape (eccentricity and size) changes. If the thrust is perpendicular to the orbit, but tangent to the surface of the...
Homework Statement
I am to find the reactions of a 3 pin frame.
Homework EquationsThe Attempt at a Solution
So how do I know which direction to label the horizontal reactions? In the diagram HA and HF are in the same direction, I was under the impression that reactions are opposite to applied...
Homework Statement
Earth actually has an electric field of 1.0 x 10^2 N/C at its surface pointing toward the center.
(b) Compare Earth's electric field and gravitational field in terms of
i) direction
ii) shape
iii) how it changes as height increases.
c) What is the largest mass that can be...
Homework Statement
If the magnetic field of a light wave oscillates parallel to a y axis and is given by ##B_y = B_m\ sin(kz- \omega t)##,
(a) in what direction does the wave travel and
(b) parallel to which axis does the associated electric field oscillate?
Homework Equations
The Attempt...
A ship sails 130 km due north from island A to island B and then 92 km, in the direction 22° south of east, to island C. The ship after that returns directly to island A. Calculate the magnitude and direction of the displacement vector in the last trip. Draw appropriate diagrams.
Homework...
Homework Statement
Two long, straight, parallel wires carry currents that are directed perpendicular to the page as shown in Figure P30.9. Wire 1 carries a current I1 into the page (in the negative z direction) and passesthrough the x-axis at x a. Wire 2 passes through the x-axis at x 5 22a and...
Hi!
My question considers no specific problem, but rather different concepts I have trouble getting my head around. So I would be really happy if you could help me understand different kinds of friction, and maybe above all their direction, acting on a rolling object. :)
Fist we have kinetic...
I've seen this question come up before and I have an intuitive explanation: In circular motion, the object is being pulled toward the center, so some of its velocity is being imparted from its tangential path toward the center. If its position with reference towards the center is changing...
Ok I know this is simple resolving but I'm a bit confused. If we resolve forces in the vertical y direction (as in the attached image), we obtain Rcos(theta)-W=0 and hence Rcos(theta) = W meaning R = W/cos(theta) [where theta = 18 degrees]
However, if we resolve forces along the direction of...
Homework Statement
Homework Equations
Faraday's and Lenz' law.
emf = -d(ф)/dt
The Attempt at a Solution
The current is increasing upwards during that time interval.
Thus, by Right-Hand-Rule, the magnetic field goes into the page at the loop.
Lenz' law says that the loop's induced emf...