What is Relative: Definition and 1000 Discussions

In music, relative keys are the major and minor scales that have the same key signatures (enharmonically equivalent), meaning that they share all the same notes but are arranged in a different order of whole steps and half steps. A pair of major and minor scales sharing the same key signature are said to be in a relative relationship. The relative minor of a particular major key, or the relative major of a minor key, is the key which has the same key signature but a different tonic. (This is as opposed to parallel minor or major, which shares the same tonic.)
For example, G major and E minor both have a single sharp in their key signature at F♯; therefore, E minor is the relative minor of G major, and conversely G major is the relative major of E minor. The tonic of the relative minor is the sixth scale degree of the major scale, while the tonic of the relative major is the third degree of the minor scale. The minor key starts three semitones below its relative major; for example, A minor is three semitones below its relative, C major.


The relative relationship may be visualized through the circle of fifths.

Relative keys are a type of closely related keys, the keys between which most modulations occur, because they differ by no more than one accidental. Relative keys are the most closely related, as they share exactly the same notes.

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  1. S

    High school relative atom mass

    Homework Statement 46-Ti 47-Ti Using the information in Table 1.1, calulate the relative atomic mass of this sample of titanium, Give your answer to 3 significant figures. Homework Equations The Attempt at a Solution I only know how to figure out the relative atom mass if...
  2. B

    Why Time is Relative: Exploring Physics

    I was sitting in my bed thinking about how time can be relative after i heard about those experiments with atomic clocks slowing down on moving objects. My idea is: Since it is meant to be impossible to go faster then the speed of light, then as something moves faster, it should become...
  3. G

    Relative Velocity-Boat Problem and Minimization

    Homework Statement Fred's friends are in a boat. If they could travel perpendicularly to the shore, they could land at his position. However, a strong current vc is greater than the maximum vm of the motor. Find the magnitude of the angle, measured relative to the straight-across direction, at...
  4. M

    Solving Relative Velocity River Crossing Problem

    Homework Statement A person in a rowboat crosses a river which flows with 4.043 km/hr. The person rows with maximum velocity of 3.138 km/hr relative to the water (measured while rowing on a still lake) and heads the boat straight across the river - along a line at 90 degrees with respect to...
  5. Y

    Relative Atomic Mass: Definition & Explanation

    Can somebody please explain for me ??
  6. J

    Kinetic Energy and relative momentum

    I've just started getting interested in physics and I am only a few (basic) books deep but there is something that has been distracting me that I can't come to a logical conclusion about. I assume this means there is a flaw in my basic understanding and wish to fix it asap. Here goes. I am...
  7. F

    Relative motion in two dimensions question

    Ship A is located at 4 km north and 2.5 km east of ship B. Ship A has a velocity of 22 km/h toward the south, and ship B has a velocity of 40 km/h in a direction 37 degrees north of east. (a) What is the velocity of A relative to B in unit-vector notation with i toward the east? (b) Write an...
  8. D

    Finding the Speed and Direction of a Woman on a Moving Ship

    Homework Statement A woman walks due west on the deck of a ship at 3 mi/h. The ship is moving north at a speed of 23 mi/h. Find the speed and direction of the woman relative to the surface of the water. (Round your answers to one decimal place.) Homework Equations The Attempt at a...
  9. S

    Why can some forms of energy be relative?

    ------------------------------------------------------------------------- SUBJECT There are various forms of energy; some are potential while others are kinetic. An object or particle can have its energy change when work is performed upon it. Likewise, it may loss some of its energy when...
  10. B

    Relative Velocity: How Newton & Einstein Used Light Speed

    i constantly feel that Newton was right in measuring the relative velocity.einstein makes use of light which has a limitation of 300000 km/s .It seems as if because light cannot travel more than 300000 km/s we we see the other object moving at lesser speed. to confirm that in relative velocity...
  11. H

    Relative velocity question from giancoli physics

    Homework Statement I attached the picture on the bottom (correction on the picture 30 degrees ---> 35 degrees sorry about that) Vpa: 600 km/h Vag:100 km/h and the question is to find the angle theta Homework Equations The Attempt at a Solution So I tried using Pythagorean theory by setting...
  12. C

    How is an electric field induced in a wire loop moving through a B field?

    Im reading a page out of Griffiths about 2 guys holding a wire loop on a railroad car and then traveling through a B field on the track. As the guys travel at a speed v through the B field the electrons will start to move in the conductor. If we view it from the point of the the B field...
  13. N

    Relative Humidity more than 100%

    In a calculation I am getting relative humidity more than 100%. What does it suggests? I know this means liquid water is also present in addition to saturated vapour. How should I calculate liquid water content then? Do I have to calculate activity first? Also what happens when I am considering...
  14. Shackleford

    Can you prove this statement for any values of a and b?

    I'm not exactly sure how to prove or disprove this statement. Just by looking at the c, I'd say it's not true, but I'm not sure how to show it either way. If (a,b) = 1 and (a,c) = 1, then (ac,b) = 1. http://i111.photobucket.com/albums/n149/camarolt4z28/IMG_20110719_192439-1.jpg?t=1311127377
  15. Darth Frodo

    Mass on a wedge. Relative acceleration.

    Homework Statement A particle of mass M is on a wedge of mass 2M. The wedge is smooth, and is inclined at 30* to the horizontal. The system is released from rest. Find the acceleration of the wedge, and find the acceleration of the particle relative to the wedge.Homework Equations F=ma The...
  16. H

    Trying to calculate relative speed between two moving points

    There are two points on the 2D rectangular coordinate system, namely P and M. Their positions are function of time and are: Position \, of \, P: \, (p_x(t), \, p_y(t)) Position \, of \, M: \, (m_x(t), \, m_y(t)) Distance between them is: R(t) \, = \, \sqrt{(p_x - m_x)^2 \, + \, (p_y -...
  17. C

    Questions about % difference, inherent error, and % relative average difference.

    1. Done in a lab: % difference: 0.679%, inherent error: 0.7%, % RAD: 0.941%. Anyway, I'm just having trouble interpreting what they mean in comparison to each other. What does the inherent error say about the % difference? And what does it mean if my %RAD is greater than my inherent error...
  18. K

    Relative energies inside a rectangular box

    Homework Statement Consider a three dimensional rectangular infinite potential well with sides of length L, 2L and 3L. What is the energy of the first excited state relative to the energy of the ground state? The second state? The third? The fourth? Homework Equations...
  19. R

    Are Angles Relative? - Physics Thought Experiment

    2 ships, A and C are traveling on a parallel course, separated by some distance x. As their velocity is constant, I could say that they share an inertial frame of reference, or in other words are at rest wrt to each other. Their clocks have also been synchronised and I will assume for this...
  20. L

    Relative Motion problem driving me crazy

    Homework Statement I figured I'll try this again. A battleship steams due east at 24 km/h. A submarine 4.0 km away fires a torpedo that has a speed of 50 km/h. If the ship is seen 20º east of north, in what direction should the torpedo be fired to hit the ship? Homework Equations...
  21. L

    Having trouble with relative motion

    Homework Statement A battleship steams due east at 24 km/h. A submarine 4.0 km away fires a torpedo that has a speed of 50 km/h. If the ship is seen 20º east of north, in what direction should the torpedo be fired to hit the ship? Homework Equations x motion of ship: x = vt x...
  22. M

    Hi.I'm finishing my first year of Undergraduate CS with relative

    Hi. I'm finishing my first year of Undergraduate CS with relative ease. We have the opportunity to take 30 credits worth of classes in another field of study (minor). I'm thinking of taking either an Applied Math or a Physics minor. For Math I was thinking about taking classes in abstract...
  23. N

    Is the polarization of light relative?

    I was wondering if anyone had input into this question. Is the measured polarization of a beam of light relative to the frame of the observer? In the texts on Optics that I've read, there does not seem to be any reference to the observer's frame. It is only mentioned that light is...
  24. T

    Exploring the Effects of Relative Mass and Relativity on Gravitational Pull

    Fg= Gm1m2/R2 and E=MC2(1/(1-(V2/C2)1/2))-MC2 So my question is, does the relative mass created by gamma,which I subbed for the relativity Equation in the above equation increase the gravitational pull that is exerted by a object near a body of mass? let's say we accelerated the moon to .99c or...
  25. D

    Relative Minus Sign for u d -> u d Process?

    relative minus sign?? Hi, I have one question for you... to compute the matrix element for the process u d -> u d I want to use full SM, but I have one problem I'll give you the maths. process with W: <ud|(\bar{Ψ}u Ψd)(\bar{Ψ}dΨu)|ud> process with γ: <ud|(\bar{Ψ}u Ψu)(\bar{Ψ}dΨd)|ud> Z and...
  26. A

    Relative intensities of Zeeman components

    Hi- I'm trying to calculate the effect of a magnetic field on some spectral lines. I know that each energy level will split into 2J+1 sub levels (each denoted by Mj). I can calculate the energy level splitting and using the selection rules (dJ = 0, +/-1, dMj = 0, +/-1, dL = 0, +/-1), I...
  27. G

    Finding Relative Extrema for a Rational Function with a Constant

    Homework Statement Find the relative extrema of the following function f(x) = (a-x)/(x2-a2) where a is a constant, a>0 Homework Equations Derivative of f(x), zeroes, quadratic formula The Attempt at a Solution I think I just screwed a small step in there because my answer doesn't...
  28. G

    Sketch graphs showing vertical & horizontal asymptotes and relative extrema

    Homework Statement Sketch the graphs of the following function showing vertical and horizontal asymptotes and relative extrema: f(x) = (x2-1)/(x2-4) Homework Equations Limits, zeroes, derivatives The Attempt at a Solution I know that I have the majority of the answers right, the...
  29. N

    Dimensions and relative magnitude

    Why is it that things appear smaller the farther they are away and bigger the closer they are away? It is almost as if the magnitude of their dimensions (length, width, and height)changes. But in reality it is still the same object. My cup x distance closer to me than the door may appear 1/6th...
  30. A

    Relative velocity and acceleration on rotating axis

    Homework Statement given a package on a conveyor belt running at a constant veloctiy of 1.5m/s, 1.8m away from the origin. the conveyor belt is rotating origin as a pivot at angular velocity 6 rad/s. it rotates on z axis. calculate the relative velocity of the package from origin (Vp/0) and V...
  31. M

    Bird's speed relative to person on ground

    Homework Statement The wind is blowing from west to east at 35.0 mph, and a bird in that wind is flying at 22.0 mph relative to the air. What is the magnitude of the velocity of this bird relative to a person standing on the ground if the bird is flying from west to east relative to the...
  32. A

    Average relative distance between 2 functions

    Hi All, Sorry perhaps for a stupid question, but I am pretty confused by this one... Suppose I have two different smooth functions, f(x) and g(x) both defined on a closed interval [a,b]. How do I calculate the average relative distance between the all values of these functions (say relative...
  33. N

    Cosmic ray, relative velocity

    Homework Statement A cosmic ray travels 60km through the Earth's atmosphere in 400μs, as mesured by experimenters on the ground. a. Calculate the relative velocity between the cosmic ray's intertial reference grame and the Earth's inertial reference frame. b. How long does...
  34. P

    Relative Velocity of a cyclist

    Hi, I got the answer to this question wrong; I'll show what I did so you guys can help me spot my misconception: A cyclist A moves with speed 3.0 m/s to the left (with respect to the road). A second cyclist B, moves on the same straight line path as A with a relative velocity of 1.0 m/s...
  35. N

    Electron-Proton Relative Speed: Solving for 0.9c and -0.0994c

    Homework Statement A laboratory experiment shoots an electron to the left at 0.9c. What is the electrons speed relative to a proton that is moving to the right at 0.9c? I have no idea how to attempt this problem i know the answer is -.0994c but I am not sure how to get this answer?
  36. P

    Is my relative motion analysis correct for this engineering problem?

    Homework Statement The attempt at a solution I used the concept of relative motion analysis for velocity: VB = VA + VB/A (4) = (-2) + ω(3) ω = 2 rad/s (CCW) Is this correct?
  37. N

    Relative Velocity in 2 Dimensions

    Homework Statement Suppose the river is moving east at 5 km/h and the boat is traveling 45 degrees south of east with respect to earth. Find (a) the speed of the boat with respect to Earth and (b) the speed of the boat with respect to the river if the boat's heading in the water is 60...
  38. H

    Comparing Ropes Released from Ships A and B in Relative Motion

    Suppose we have two ships A and B in uniform motion according to each other(A claims B to in motion and B claims A to be in motion). Let each one of the objects have a roll of rope on it (let us call the ropes a-> for A's rope and b-> for B's rope). Now when the ships were initially close to...
  39. P

    Another relative speed and size question

    if the universe was the size of my laptop, and i moved my hand over my laptop from one end to the the other in let's say ... 1 second . relative too the universe my hand would have moved millions of times faster than the speed of light. Why is this? is speed relative to size?
  40. C

    Inside the Event Horizon: The Relativistic Effects on Mass and Light

    Let's say you're mass is 100kg and you're traveling at 0.9C. The relativistic effect on your mass is roughly 2.3 so you now have a mass of 230kg. If you went whipping past me, would you appear to have a mass of 230kg or 100kg? Seems like a no-brainer. But it keeps tripping me up! TIA...
  41. M

    Can Spaceships Travel Faster Than the Speed of Light?

    Two spaceships are traveling relative to Earth (stationary). One spaceship is going to the right at 0.8c the other is going to the left at 0.8c. Could you say their relative speed to one another is .8c+.8c? I'm thinking not since you can't possible go faster then the speed of light, doesn't...
  42. M

    Relative Speed and Size of Two Spaceships Traveling in Opposite Directions

    Homework Statement Two spaceships are traveling relative to Earth (stationary). One spaceship is going to the right at 0.8c the other is going to the left at 0.8c. a. What is their relative speed to one another? b. what is their relative size? Homework Equations The Attempt at a Solution
  43. B

    Relative Velocity and angular velocity

    Homework Statement Knowing that at the instant shown rod AB has a constant angular velocity (w = 15 rad/s) counterclockwise (+k) determine (a) the angular acceleration of rod DE (b) the acceleration of point D Homework Equations (w = omega) VB = VA + VB/A VB/A=w X r aB = aA + a X r...
  44. C

    Is the speed of sound relative?

    drunken musings... if i was sat on the wing of a jet traveling at mach2 would i be able to hear the the noise of the engine behind me?
  45. D

    Ambiguity in time dilation due to relative velocity

    I would like to see some comments on this observation that appears to lead to an ambiguity re: time dilation: The usual definition for time dilation is the expression: t =t'/(1-V^2/c^2)^1/2 where an individual in the unprimed coordinate system "at rest" in empty space, sees a clock in the...
  46. F

    Finding matrix relative to different bases

    Homework Statement Let B = {b1, b2, b3} be a basis for a vector space V and T : V -> R2 be a linear transformation with the property that T(x1b1 + x2b2 + x3b3) = 2x1 - 4x2 + 5x3 0x1 - 1x2 + 3x3 Find the matrix for T relative to B and the standard basis for R2. Homework...
  47. X

    Can there be a material with relative permittivity < 1?

    Just a thought experiment... Cover a metal plate with a material of relative permittivity 0 on one side. Then place a charge on the metal plate. The system as a whole will accelerate towards the metal side since there is no flux on the covered side and so the charge is accelerated in the...
  48. M

    Is Gravity Relative to Density Alone

    I apologize if this comes off as a dumb question, but does anyone know if gravity is ABSOLUTELY simply dependent on density alone, regardless of the type of material itself, or does the type material also factor into it's gravity?
  49. A

    Velocities - how relative are they really?

    Hello everyone! Something about speeds and how they're supposed to be relative has been bugging me for a while. I'm not particularly well-versed in physics, so if these questions make you cringe ... well, sorry about that. ;) So here goes - it is said that speeds are relative, right? If you...
  50. S

    Equation of a Surface relative to a basis

    Equation of a Surface relative to the standard basis is X1^1 + 2X2^2 + 3x^3 -4x1x2 -4x2x3 =0 Now the question ask to find the equation of above surface relative to the cordinate system with basis vectors F1= (2/3,2/3,1/3) F2= (1/3,-2/3,2/3) F3= (2/3,-1/3,-2/3) Now i found the transition...
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