What is Value: Definition and 1000 Discussions

In ethics, value denotes the degree of importance of some thing or action, with the aim of determining what actions are best to do or what way is best to live (normative ethics), or to describe the significance of different actions. Value systems are prospective and prescriptive beliefs; they affect ethical behavior of a person or are the basis of their intentional activities. Often primary values are strong and secondary values are suitable for changes. What makes an action valuable may in turn depend on the ethical values of the objects it increases, decreases or alters. An object with "ethic value" may be termed an "ethic or philosophic good" (noun sense).Values can be defined as broad preferences concerning appropriate courses of actions or outcomes. As such, values reflect a person's sense of right and wrong or what "ought" to be. "Equal rights for all", "Excellence deserves admiration", and "People should be treated with respect and dignity" are representatives of values. Values tend to influence attitudes and behavior and these types include ethical/moral values, doctrinal/ideological (religious, political) values, social values, and aesthetic values. It is debated whether some values that are not clearly physiologically determined, such as altruism, are intrinsic, and whether some, such as acquisitiveness, should be classified as vices or virtues.

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  1. Demystifier

    A Value of observable in statistical ensemble interpretation

    The statistical ensemble interpretation (SEI) is supposed to be a minimal interpretation of QM with the smallest amount of philosophy, vagueness and controversy. Yet it turns out not to be the case. For instance Ballentine, the inventor of SEI, interprets Bell theorem as a strong evidence of...
  2. C

    What is the value of ni for an electron

    Homework Statement what is the value of ni for an electron that emits a photon of wavelength 93.14 nm when it returns to the ground state in the hydrogen atom Homework Equations planck's constant 6.63 x 10^-34 The Attempt at a Solution no idea [/B]
  3. H

    I Contradiction in an absolute value property?

    An absolute value property is $$\lvert a \rvert \geq b \iff a\leq-b \quad \text{ or } \quad a\geq b,$$ for ##b>0##. Is this true for the case ##a=0##? I mean if ##a=0, \lvert a \rvert =0## so ##0 \geq b##. But ##b## is supposed to be ##b>0##, so we have a contradiction. How can this property...
  4. digogalvao

    Proof of expectation value for a dynamic observable

    Homework Statement Show that: d<A(q,p)>/dt=<{A,H}>, where {A,H} is a Poisson Bracket Homework Equations Liouville theorem The Attempt at a Solution <A>=Tr(Aρ)⇒d<A>/dt=Tr(Adρ/dt)=Tr(A{H,ρ}) So, in order to get the correct result, Tr(A{H,ρ}) must be equal to Tr({A,H}ρ), but I don't think I can...
  5. Schaus

    Find Point c that satisfies the Mean Value Theorem

    Homework Statement Find the point "c" that satisfies the Mean Value Theorem For Derivatives for the function ## f(x) = \frac {x-1} {x+1}## on the interval [4,5]. Answer - c = 4.48 Homework Equations ##x = \frac {-b \pm \sqrt{b^2 -4ac}} {2a}## ##f'(c) = \frac { f(b) - f(a)} {b-a}## The Attempt...
  6. Asmaa Mohammad

    Calculation of the least value of PD needed to produce x-rays

    Homework Statement [/B] In my excercise book, I was given a typical diagram as that in Fig (6-7) above. And the problem statement says: The diagram presents the x-ray spectrum produced by Coolidge tube. Determine the least potential difference needed to produce the characteristic radiation...
  7. Neil Hayes

    How to find a suitable value for a neutral resistance?

    Homework Statement . [/B] An 11kv motor is fed by cables from a transformer via switchgrear, having a phase impedence of 0.3 + j0.3 ohm. The Earth return path to the transformer neutral has a resistance of 0.42 ohm. Determine a suitable value of neutral resistance if the voltage rise at...
  8. S

    Does frequency affect inductor and capacitor value

    Hi , I was measuring the inductor and capacitor value of a resistor bank with a 100Hz and 1kHz using a LCR meter by fluke. I realize that with different frequency, the L and C values were different. If the measured values were the inductance and capacitance I can understand that it changes...
  9. W

    B Actual value of normal reaction

    I am a high school student in Hong Kong studying Physics. I am having some problems about atmospheric pressure. Imagine there is a cube block with volume 1 m3 and top surface area 1 m2 . The cube block is being placed on the floor and it has mass of 1 kg. What is the normal reaction force F...
  10. Mr Davis 97

    I Find Cauchy Principal Value of Improper Integral

    Say I am given the integral ##\displaystyle \int_0^{\infty} \frac{x \sin (ax)}{x^2 - b^2} dx##. How can I determine whether this improper integral converges in the normal sense, or whether I should just look for the Cauchy Principal Value?
  11. nothing909

    Resistor value at the gate of a JFET

    Homework Statement Referring to the diagrams below, what would a suitable value for Rg and why? I have did a lot of research and can't get a clear answer, can someone clear it up for me?
  12. M

    MHB How can I solve the equation to find the value of k when the roots differ by 2?

    The roots of the equation 2x^2+ 5x – k differ by 2. Find the value of k. Can someone get me started? I found this question online and find it interesting.
  13. M

    MHB What is the value of n in 8x^2+4x+n if the expression has real roots?

    If the expression 8x^2+4x+n has real roots, find the value of n. Can someone get me started? I found this question online and find it interesting.
  14. R

    MHB How to find the value of f'(x) at c

    How to find the value of f'(x) at cif 1. f(x)=sinx, c=pi/4 2. f(x)=sinx, c=3pi/2 3.2. f(x)=cosx, c=0, pi/2, pi, 3pi/2, 2pi
  15. E

    Spherical Integral with abs value in limits

    Homework Statement This has been driving me crazy I can't for the life of me figure out how to convert the limits of this integral into spherical coordinates because there is an absolute value in the limits and I'm absolutely clueless as to what to do with with.Homework Equations $$\int_{\frac...
  16. B

    Time dependent expectation value problems

    Homework Statement Homework EquationsThe Attempt at a Solution I tried to solve (a), but i don't know which approach is right ((1) or (2)) and how to solve (b).[/B]
  17. M

    MHB Value of Irrational Number π (Part 2)

    The value of irrational number π, correct to ten decimal places (without rounding), is 3.1415926535. By using your calculator, determine to how many decimal places the following quantity (22/7) agrees with π. Extra notes from textbook: Archimedes (287-212 B.C.) showed that (223/71) < π <...
  18. M

    MHB Value of Irrational Number π (Part 1)

    The value of irrational number π, correct to ten decimal places (without rounding), is 3.1415926535. By using your calculator, determine to how many decimal places the following quantity [(4/3)^4] agrees with π. The value used for π in the Rhind papyrus, an ancient Babylonian text written...
  19. Cocoleia

    Proving the expectation value of any eigenvalue function

    Homework Statement Homework Equations The Attempt at a Solution When I take the second formula, multiply by it's conjugate and then by x and do the integral of the first formula, I get 0, and not L/2, for <x>. Am I missing a formula ? The complex conjugate of the exponential part...
  20. J

    I Determining H value from scalefactor

    I’m probably missing something obvious here but I can’t figure out what. Consider a galaxy, starting at an initial distance of ##D_0##, recessing with a constant velocity. After a time Δt, we’d measure a larger distance ##D_{t}##. From this scenario I’d conclude that the Hubble value based on...
  21. P

    B Can You Find the Constant Value K for a Slowly Inflating Balloon?

    Hi, I'm working on a problem about a spherical balloon as its inflated slowly the radius of the balloon is in cm and the time is in seconds dr/dt = k/r2 Now I know how to rearrange this equation using separable differentiation r=3√3kt+c However I would like to find the value of the...
  22. D

    Expected Value: Coin flip not same as previous flip

    Homework Statement Given a sequence of Heads and Tails, let’s say that the sequence has a switch each time one toss is different than the toss before it. For instance, the sequence HHTHTTTHTH has 6 switches. Suppose you toss a fair coin N times and record the resulting sequence of Heads and...
  23. Mr Davis 97

    I Why Does the Equation ##\sqrt{a^2} = a## Lead to Confusion in Mathematics?

    If we define ##|a| = \sqrt{a^2}##, then why can't we do something like ##\sqrt{a^2} = (\sqrt{a})^2 = a##? Or equivalently ##\sqrt{a^2} = (a^2)^{1/2} = a^{2/2} = a##? Isn't this a contradiction? Also, how would this relate to showing that ##\sqrt{|a|} = |\sqrt{a}|## is true or false?
  24. FritoTaco

    Verifying Hypotheses of the Mean Value Theorem for f(x)=1/(x-2) on [1,4]

    Homework Statement Find all the numbers c that satisfy the conclusion of the Mean Value Theorem for the functions f(x)=\dfrac{1}{x-2} on the interval [1, 4] f(x)=\dfrac{1}{x-2} on the interval [3, 6] I don't need help solving for c, I just want to know how I can verify that the hypotheses of...
  25. A

    MHB How Do You Calculate Expected Value in a Dice Game?

    I really need help on how to solve this (Sweating): A dice game involves rolling 2 dice. If you roll a 2, 3 , 4, 10, 11 or a 12, you win \$5. If you roll a 5, 6, 7, 8, or 9, you lose \$5. Find the expected value you win (or lose) per game.
  26. L

    MHB Multiple arrays: Key and value.

    Hello, I am stuck on this question.The bold part is where I am stuck. I was able to get at least 2 out of the 3 test outputs but I can't seem to get the last one. I tired taking out the dividing by 2 but then the first test output doesn't work. Thank you. Question: For any element in keysList...
  27. karush

    MHB Solve the initial value problem

    Solve the initial value problem for $y$ as a function of $x$ \begin{align*}\displaystyle \sqrt{16-x^2} \, \frac{dy}{dx}&=1, \, x<4, y(0)=12 \end{align*} assume the first thing to do is $\int$ both sides
  28. M

    B Find the Minimum Value of Expression Involving Positive Real Numbers

    if ## a,b,c,d,e ## are positive real numbers, minimum value of (a+b+c+d+e)( \frac{1}{a} +\frac{1}{b} +\frac{1}{c} +\frac{1}{d} +\frac{1}{e} ) (A) 25 (B) 5 (C) 125 (D) cannot be determined My approach : expanding the expression , i get 5+a( \frac{1}{b} +\frac{1}{c} +\frac{1}{d} +\frac{1}{e}...
  29. S

    I Which ψ do I use for the Expectation Value ?

    I have to calculate the Expectation Value of an Energy Eigenstate : < En > The integral is ∫ ψ* En ψ dx I have : A ) ψ = √L/2 sin nπx/L , a single standing wave of the wave function B ) ψ = BsinBcosD , the wave function of the particle C ) ψ = ΣCn ψn = C , sum of all the...
  30. M

    MHB Max Value of Coefficient of Restitution for 3 Sphere Collision

    three spheres of mass 1kg,2kg and 3kg move in the same line with velocities 5i,i and 3i respectively. the smaller masses are the first to collide.if only one collision takes place find the maximum value for the coefficient of restitution between the smaller masses. what I've got so far...
  31. S

    Value of resistor for full scale deflection with 10A

    Homework Statement In order to provide full scale deflection the coil current required in a galvanometer is 190μA and the resistance of the coil in the galvanometer is 35Ω - What is the value of the resistor to be connected in parallel with the meter so that full scale deflection is obtained...
  32. A

    Do the radius of capillary affect the value of surface tension ?

    While going through the derivation to find the surface tension of liquid i came with the formula which says that the surface tension is directly proportional to radius of the capillary so does that imply if we use a capillary with a greater radius so the same will give the different value of...
  33. Kenneth Adam Miller

    I Expectation value with imaginary component?

    Hello, I'm a beginner at quantum mechanics. I'm working through problems of the textbook A Modern Approach to Quantum Mechanics without a professor since I am not going to college right now, so I need a brief bit of help on problem 1.10. Everything else I have gotten right so far, but I am...
  34. Steve Zissou

    I Expected Value of Random Variable X: Solving for E[1/X]

    Hello all, I'm wondering if someone can offer some insight here: We have a random variable X, and it's expectation is called y. Can it be shown that 1/y = E[1/X] ?? Thanks
  35. resurgance2001

    I Variations in the local value of Hubble constant

    I have been reading in various sources that the directly measured value of Ho is high than the global value inferred by precise measurements of the CMB. The local value seems to be around 73 km/s/Mpc where as the global value inferred, assuming a flat Lamda CDM model is about 67 km/s/Mpc...
  36. T

    Basic finance Present Value and Anuity

    I've done the problems, but they don't make sense to me. The answers don't really make sense. I'll post the question, the given formulas and my attempts: Given formulas: (1) future value to present value: PV= FV / (1+i)n (2) annual payment to present value: PV = A/i * [1 - 1/(1+i)n]...
  37. Vishakha

    Value of cos(x) where x is multiple of a matrix

    Homework Statement Given a matrix M={{2,1},{1,2}} then value of cos( (π*M)/6 )Homework EquationsThe Attempt at a Solution Eigen values are π/6 and π/2 and eigen vectors are (π/6,{-1,1}) and (π/2,{1,1}). Diagonalize matrix is {{π/6,0},{0,π/2}} I got same value (√3/2)M
  38. Hamood97

    Find the two figures and the get value of the resistor and current

    Homework Statement finding the resistor and current which is following through the circuit[/B]Homework Equations kirchhoff law The Attempt at a Solution almost as fig 1 ( 9v=3.458 mA and 12v=11.122 mA) fig 2 (9v=1.472 mA and 12v=12.882 mA) i3=2.48 mA
  39. Drakkith

    Differential Equation Initial Value Problem

    Homework Statement A Solve the following initial value problem: ##\frac{dx}{dt}=-x(1-x)## ##x(0)=\frac{3}{2}## B. At what finite time does ##x→∞## Homework EquationsThe Attempt at a Solution ##\frac{dx}{dt}=x(x-1)## ##\frac{dx}{x(x-1)}=dt## Partial fractions...
  40. N

    MHB Find value of x and area of parallelogram: a,b,c,P

    Hello, could someone please help me with this question? I don't even know where to begin. Given vectors a = (2, x, 0), b = (1, 0, −1) and c = (5, −9, 3), and let P(2, 1, −1) be a point. Find the value of x in a such that the angle between a and b is π/4, then find the area of parallelogram...
  41. S

    I What is the significance of calculating the average value of cos?

    In kinetic theory, the number of molecules hitting a unit area of a surface per unit time with speeds between v and v + dv and angles between \theta and \theta + d \theta is found to be a function of sin(theta) and cos(theta). There will often be a practice problem asking to show that the...
  42. Buzz Bloom

    I How is the value of tT^2 calculated for neucleosynthesis

    The following quote is from the Wikipedia article https://en.wikipedia.org/wiki/Big_Bang_nucleosynthesis#Characteristics . The temperature/time relation in this era can be given by the equation: where t is time in seconds, T is temperature in MeV, and g* is the effective number of particle...
  43. Albert1

    MHB Solve for x and y When (x+$\sqrt {x^2+1})\times (y+\sqrt {y^2+4})=7$

    $if \,\, (x+\sqrt {x^2+1})\times (y+\sqrt {y^2+4})=7$ $find: \,\, x\sqrt {y^2+4}+ y\sqrt {x^2+1}=?$
  44. BiGyElLoWhAt

    Java How to get the most recently updated textfield value

    I couldn't find this online, but basically, I have 4 text fields that can be updated as the user wishes, but I want to get the value from the most recently updated one, and have the others revert to their previous values. Say initially all fields are zero. A user edits one field and hits the...
  45. E

    When is gravitational value - and/or +?

    Homework Statement Projectile motion questions, Kinematics questions: my physics teacher defined acceleration due to gravity as -9.81 m/s2. Specifically in questions regarding: dropping an object, throwing an object downwards, obliquely launching an object. Today we are studying a box on...
  46. mccoy1

    I The absolute value of the frequency in quantum mechanics

    I was reading Bransden's Quantum Mechanics 2nd edition, chapter 2 page 61. There,it says "It should be noted that since E =hv (v for nu), the absolute value of the frequency has no physical significance in Quantum mechanics..." Why is that? Isn't this a contradiction?
  47. F

    Electric Potential reference value (or zero).

    Hello forum members, The electric potential for a point charge is a scalar function given by $$V = \frac {kq}{r}$$ This means that the potential has a nonzero value everywhere. The potential becomes ##V=0## when ##r=\infty##. However we know that what matters is the potential difference...
  48. T

    Proof of the total probability rule for expected value?

    Homework Statement Does anyone know of a simple proof for this: https://s30.postimg.org/tw9cjym9t/expect.png E(X) = E(X|S)P(S) + E(X|S_c)P(S_c) X is a random variable, S is an a scenario that affects the likelihood of X. So P(S) is the probability of the scenario occurring and and P(S_c) is...
  49. J

    Fourier series expansion. Find value of a term in expansion

    Homework Statement Fourier series expansion of a signal f(t) is given as f(t) = summation (n = -inf to n = +inf) [3/(4+(3n pi)2) ) * e j pi n t A term in expansion is A0cos(6 pi ) find the value of A0 Repeat above question for A0 sin (6 pi t) Homework Equations Fourier expansion is summation...
  50. Drakkith

    Solving an Initial Value Problem for x(t=ln2): Step-by-Step Solution

    Homework Statement Solve the initial value problem: ##\frac{dx}{dt} = x(2-x)##, ##x(0) = 1## for ##x(t=ln2)##. Homework EquationsThe Attempt at a Solution I moved the right side to the left and multiplied both sides by dt to get: ##\frac{dx}{x(2-x)} = dt## Integrating gave me...
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