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PHL282H5 Study Guide - Midterm Guide: Lucretius

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bluekangaroo916
29 Oct 2012
School
UTM
Department
Philosophy
Course
PHL282H5
Professor
Rachel Bryant

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Document Summary

Everything that has not happened has the equal possibilities of being good or bad. Therefore is not wise to predict death is bad as it has not come. Those who are afraid of death should change their attitudes. Be general, death itself is nothing to us. It never affects any parts through our whole lives, and when we anticipate it, we have already ceased to exist. We can not say death is either good or bad. We only treat pleasure is good and pain is bad, and death is what we change from existence to non-existence. In a non-existence state, it lacks a subject to undergo either pain or pleasure. So we should have a prudent attitude toward the fact of death. For those who think death will deduct their right toward further pleasure and therefore think it is evil, epicurean tells the magnitude of pleasure is the same for limited life and unlimited life.

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Related Questions

Considers Thompson’s 2nd experimental measurement of e/m.Thankfully, legions of physicists have already figured out for youthe exact value of e/m.
a) Knowing that, if I were to give you a cathode-ray-tube, wherethe length of the deflection plates were 1 cm, and the distancefrom the end of the deflection plates to the phosphorescent screenwas 20 cm, and your electric field strength was E=10 kV/cm (1MV/m), and the strength of your magnetic field was B=0.01 T, whatis the magnitude of the deflection you could expect at thescreen?
b) If you have a good month and don’t spend too much money onITunes or at Starbucks, you could go to Magnets R’ Us and buy abetter magnet, say one that has a strength of B=1 T. If you kepteverything else the same with your cathode-ray-tube and used thenew magnet, what would the deflection of the electron beam be?

(a) Is any force exerted on the vertical sides of the loop thatyou used in the experiment and how does it affect the apparentmass? (Select all that apply.)

There is a force exerted on eachside of the loop that are equal in magnitude and opposite indirection.No force is exerted on the sidesof the loop.The lengths of the sides of theloop are much smaller than the bottom section and therefore theforce on the sides are negligible.The forceon the sides are not in the same direction in which the mass ismeasured and therefore it does not affect theresults.The force exerted on the sides ofthe loop cancel each other out.



(b) What would happen to the apparent change in mass if thedirection of the current is reversed? (Select all that apply.)

The magnitude of the apparentchange in mass is unaffected, but the sign isreversed.There is no change to either thedirection or the magnitude of the apparent change inmass.A decrease in apparent mass nowbecomes an increase, and vice versa.Itreverses the direction of the force vector on themagnet.



(c) What would happen to the apparent change in mass if the polesof the magnet were switched? (Select all that apply.)

The magnitude of the apparentchange in mass is unaffected, but the sign isreversed.The effect is the same asreversing the direction of the current.There is no change to either the direction or the magnitude ofthe apparent change in mass.It reverses thedirection of the force vector on the magnet.



(d) What would happen to the apparent change in mass if both thedirection of the current and the poles of the magnet were switched?(Select all that apply.)

There is no change to either thedirection or the magnitude of the apparent change inmass.A decrease in apparent mass nowbecomes an increase, and vice versa.Themagnitude of the apparent change in mass is unaffected, but thesign is reversed.It reverses the directionof the force vector on the magnet.

(a) Is any force exerted on the vertical sides of the loop thatyou used in the experiment and how does it affect the apparentmass? (Select all that apply.)

There is a force exerted on eachside of the loop that are equal in magnitude and opposite indirection.No force is exerted on the sidesof the loop.The lengths of the sides of theloop are much smaller than the bottom section and therefore theforce on the sides are negligible.The forceon the sides are not in the same direction in which the mass ismeasured and therefore it does not affect theresults.The force exerted on the sides ofthe loop cancel each other out.


(b) What would happen to the apparent change in mass if thedirection of the current is reversed? (Select all that apply.)
The magnitude of the apparentchange in mass is unaffected, but the sign isreversed.There is no change to either thedirection or the magnitude of the apparent change inmass.A decrease in apparent mass nowbecomes an increase, and vice versa.Itreverses the direction of the force vector on themagnet.


(c) What would happen to the apparent change in mass if the polesof the magnet were switched? (Select all that apply.)
The magnitude of the apparentchange in mass is unaffected, but the sign isreversed.The effect is the same asreversing the direction of the current.There is no change to either the direction or the magnitude ofthe apparent change in mass.It reverses thedirection of the force vector on the magnet.


(d) What would happen to the apparent change in mass if both thedirection of the current and the poles of the magnet were switched?(Select all that apply.)
There is no change to either thedirection or the magnitude of the apparent change inmass.A decrease in apparent mass nowbecomes an increase, and vice versa.Themagnitude of the apparent change in mass is unaffected, but thesign is reversed.It reverses the directionof the force vector on the magnet.