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Philosophy 2500F/G Study Guide - Final Guide: Empiricism, Ontological Argument

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rubydinosaur559
18 Sep 2012
School
Western University
Department
Philosophy
Course
Philosophy 2500F/G
Professor
Prof

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Document Summary

Empiricist knows that knowledge of the outside world comes from experiences, what we know about matter is created by what our perceptions of objects are. Descartes is a rationalist, argues that what comes to us comes to us from our rational mind from knowledge and science. Methodological skepticism treating everything as false until something comes to make it certain. Things you experience are a merely a fabrication of the mind no definitive signs that allow us to distinguish between real life and fabrications a number gives it extension that makes it real. Evil genius: doesn"t want ideas to be based in god the less perfect the thing is that created me is the more likely it is that what i created is, is flawed. Radical dualism between the person and the place that he lived in, man vs nature descartes distrusts the material world says it is no place for knowledge.

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Related Questions

I am so lost onwere to even begin. I just need help trying to find the Ѳ (angle)for part part 1 of the experiment if anyone can just explain how todo that and maybe give me a step-by-step example so I can finishthe rest. Thank you! Experiment 6 ~ Friction

Purpose:

In this lab, you will make some basic measurements of friction.You will measure the coefficients of staticfriction between several combinations of surfaces using aninclined plane, and you will measure the coefficient ofkinetic friction between two of the combinationsof surfaces you used in the static friction part of thisexperiment.

Part 1: StaticFriction

Theory:

The coefficient of static frictionms can be measured experimentally foran object placed on an inclined plane (a.k.a. ramp, a.k.a. hill).The coefficient of static friction is related to the criticalangle qc for the ramp, at whichthe object just begins to slide. Using what we havecovered in class, you can derive this relationshipyourself! At this critical angle, static friction preventing theobject from sliding down the hill is just exactly equal to thecomponent of the object’s weight along the hill. If the componentof the weight along the hill were just a little greater, it wouldovercome friction, and the object would start to slide down. Thefree body diagram for this situation will look like the figuresketched below. Use this diagram to find an equation that relatesms toqc.

Questions:

1. How do the values of ms compareto the values of mk? (Of course, youcan only compare them for the same pairs of materials.)

2. Is the relationship betweenmsand mkwhat you expected?

3. Of the two parts of the experiment, measurement ofmsand measurement ofmk, which had more sources of error?What were some of the sources of error?

4. Could mk orms ever be greater than 1? Explain whyor why not.

5. Is the coefficient of friction the same as when the block wasstanding on its larger (or smaller) end?

6. Think about your results. Do they make sense when youconsider your everyday experiences?

1a) Faraday discovered that a current is induced in a coil

A) only when the N pole of a magnet is inside the coil
B) only when the S pole of a magnet is inside the coil
C) only when there is a magnetic field inside the coil
D) only when the magnetic field inside the coil is changing

1b). A conductor moves through a uniform magnetic field at speed v and has a motional emf V created across it. If the conductor were to move twice as fast through the magnetic field, the motional emf would be:

A) V
B) 2V
C) 4V
D) V/2
E) V/4

1c) In the conducting rail discussed in section 25.2 (where the rail is moving at constant speed), what can you say about the power input due to the person pulling on the rail and the power dissipated in the resistance?

A) Power input from pull = power dissipated in R
B) Power input from pull > power dissipated in R
C) Power input from pull < power dissipated in R

1d) The electric generator as shown in the reading generates electricity by:

A) rotating a loop inside a magnetic field
B) moving a magnet in and out of a loop
C) sliding a loop over a magnet
D) running current through a loop in a magnetic field

1e) The magnetic flux through a loop:

A) is proportional to the number of magnetic field lines going through it
B) depends just on the B field going through the loop
C) is maximized when the B field lines in the plane of the loop
D) is zero when the B field is perpendicular to the plane of the loop
E) doesn't depend on the direction of the B field

1f) According to Lenz's Law, the induced B field (due to the induced current) will:

A) be in the opposite direction of the existing B field
B) be in the same direction as the existing B field
C) be in the same direction as the change in the existing B field
D) be in the opposite direction of the change in the existing B field

1g) A stationary coil experiences a doubling of its magnetic field (no change in direction of the field) in a time T and has a given induced EMF. If the same change were to have happened in half the time (T/2), the induced EMF would have been:

A) half as large
B) the same
C) twice as large
D) one-fourth as large
E) four times as large

1h) Eddy currents:

A) make it hard to pull a nonmagnetic material through a magnetic field
B) make it hard to pull a magnetic material through a magnetic field
C) speed up a magnetic material moving through a magnetic field
D) speed up a nonmagnetic material moving through a magnetic field

 

 

To determine the centre of gravity of a composite body using the principle of superposition. The layout shown is a representation of a machine shop. Components 1 and 2 have masses of 280kg and 215kg, respectively. Component 3 must be treated as a distributed load, which is 165kg/m2, determined by the area of contact between the component and the shop floor. The dimensions shown have been measured to be a=0.65m, b=2.60m, c=1.60m, d=0.65m, e=3.60m, and f=1.30m. These dimensions represent the and components of the locations of the centres of gravity for the respective components. Component 3 has cross-sectional dimensions of 1.30m and 0.250m. Assume the components experience uniform weight distribution in all principle directions. The dimensions locate the centroid of the respective component from the y-z plane and x-z plane. Part A - The x Component of the Center of Gravity of All the Components Determine the x component of the centre of gravity of all the components. Express your answer to three significant figures and include the appropriate units. Part B - The y-Component of the Center of Gravity of All the Components Determine the y component of the centre of gravity of all the components. Express your answer to three significant figures and include the appropriate units. Part C - The z Component of the Center of Gravity of All the Components If the heights of the components are given as 1.90m, 0.650m, and 0.200m, determine the z component of the centre of gravity of all the components.