PHIL 1100 : Susan WOLF

52 views1 pages

tancrab558

21 Dec 2011

School

Department

Course

Professor

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

Meaning in life susan wolf y 1997 article happiness and meaning two aspects of life . defines meaning of life, instinct (longing) for people {page 232} y claims a paradigms in her culture (meaningful and meaningless examples) y y. Active engagement (great, excitingly involved) in projects of worth (objective values) (page 232) y subjective values tends to be shallow y two objective values: great intellectual accomplishments y projects of worth; friends, personal virtues (charity) and religious values (examples) {also objective} y meeting a movie star, crossword puzzles, video games, just amusements not satisfying deep meaning in meaning of life y distinguishes active engagement but no projects of worth, or vice versa (example: doctors, driving a school bus) engaged projects of worth but no active engagement y. Meaning arises when subjective attraction meets objective attractiveness . being a doctor is objective attractiveness (saves lives, helping people)

Related Questions

I am stuck on this question, with an idea of what the answerif:

An engineer has designed a small and precise device with a built inmass on a spring damped oscillator with a spring constant k = 10.0N/M, mass m 1.00 g and variable damping constant b. The first testof the device showed that the amplitude of oscillations dropped to25% of its initial value in 23.1 ms. This time interval wasinappropriately long for the project and should be shortened. Canthe engineer halve the initially obtained time it takes to reducethe apmplitude to 25% of its initial value by varying the dampingconstant in his device?

a) if yes, what change in the damping constant b can help theengineer reach the design objective?

b) if no, why not?

I think that I am going to run into an issue of over damping,meaning that the answer is b. Either way, I have tried to solve forb itself, and to no avail. Any help would be greatlyappreciated.

This problem introduces the concept of tension. The example is a rope, oriented vertically, that is being pulled from both ends. Let F_u and F_d (with u for up and d for down) represent the magnitude of the forces acting on the top and bottom of the rope, respectively. Assume that the rope is massless so that its weight is negligible compared with the tension. (This is not a ridiculous approximation-modern rope material such as Kevlar can carry tensions thousands of times greater than the weight of tens of meters of such rope.)

Consider the three sections of rope labeled a, b, and c in the figure.

At point 1, a downward force of magnitude F_ad acts on section a.
At point 1, an upward force of magnitude F_bu acts on section b.
At point 1, the tension in the rope is T₁.
At point 2, a downward force of magnitude F_bd acts on section b.
At point 2, an upward force of magnitude F_cu acts on section c.
At point 2, the tension in the rope is T₂.

(A) What is the magnitude F_ad of the downward force on section a?

(B) What is the magnitude F_bu of the upward force on section b?

(C) The magnitude of the upward force on c, F_cu, and the magnitude of the downward force on b, F_bd, are equal because of which of Newton's laws?

(D) The magnitude of the force F_bu is ______ F_bd.

(E) Now consider the forces on the ends of the rope. What is the relationship between the magnitudes of these two forces?

(a) F_u > F_d

(b) F_u = F_d

(F) The ends of a massless rope are attached to two stationary objects (e.g., two trees or two cars) so that the rope makes a straight line. For this situation, which of the following statements are true?

(a) The tension in the rope is everywhere the same.

(b) The magnitudes of the forces exerted on the two objects by the rope are the same.

(d) The forces exerted on the two objects by the rope must be in the direction of the rope.

ambergiraffe181

5. For nuclear fusion to occur, two protons must get closeenough
that, in the terms of quantum mechanics, their wave functionsoverlap
substantially. In quantum mechanics, the radius of a particle hasno
well-defined meaning, but there are quantitites which are analagousto
the radius of a particle, and for a proton, this value is10^-15
meters. The proton's charge is 1.6*10^-19 Coulombs, and thepotential
energy due to the electric repulsive force is expressed as:
E = k q1 q2 / r, where k is the electrostatic constant, 9*10^9Jm/C^2,
q1 and q2 are the charges of the two objects, and r is theseparation
between them.
a) Find the potential energy barrier one needs to overcome tocause
fusion to occur, in this simplified approach
b) At what temperatre will typical atoms have this energy? Hint:you
may find useful the relation <E> =k_B T, which relations themean
energy <E> to the temperature, T, through the Boltzmann'sconstant,
k_B. k_B = 1.38 *10^-23 J/K
c) Compare this temperature with the temperature in the center ofthe
Sun, and make a qualitative statement about how likely anyparticular
atom is
to undergo a fusion in a single near passage to another atom.

PHIL 1100 : Susan WOLF

Document Summary

Get access

Related Documents

PHIL 1100 Lecture Notes - Lecture 19: Logical Positivism, Susan R. Wolf, Mother Teresa

PHIL 1100 Lecture : The Meaning of Life-Nozick

PHL204H5 Lecture Notes - Lecture 16: Experience Machine

Related Questions