GGRB02H3 Lecture : 2nd lecture

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aquamarineminnow819

25 Feb 2012

School

UTSC

Department

Geography

Course

GGRB02H3

Professor

Rajyashree Narayanareddy

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Document Summary

Social affect space come to be, construct of space and place important. -history is a context of the discipline, and it is not from a vacuum. What geography history matter is the social context, econ. , political, cultural practices etc, it affect the ways geography becomes. Expenditure and exploration of columbus establish of geo. Geography discipline is built from advancement of ship building, navigation technique, travel far ways. People could travel far away due to the science of navigation, knowledge description, teach skills in navigation. Europe s self image - perception of europe s own comparation of land and ppl. Massive superior, place of in theory of men of border world. Europe have a better sense of the world, and self-image is changing, Exploration contributed new group of people of wealthy. Geo s role in navigation, comes to established through exploration, difference navigation and exploration. Navigation principle - discover new land and find new routes to old land between europe and.

Related Questions

please help. I am having a hard time understanding thisproblem.

A.) Two sheets of aluminum foil have the same area, a separation of1.9 mm, and a capacitance of 1350 pF, and are charged to 12 V.Calculate the area of each sheet.

B.) The separation is now decreased by 0.10 mm with the charge heldconstant. What is the new capacitance?

C.) By how much does the potential difference change? (Give thedifference as the new potential minus the one before the decreasein separation). Explain how a microphone might be constructed usingthis principle.

Thanks,
Ryan

a) If the capacitors C in the above problemareall replaced by identical resistors R, what will be theeffectiveresistance of the configuration?

b )If a potential difference VAB isappliedbetween points A and B, what will be thepotential
differences across the individual resistors in the top, middleandbottom rows?

c)What will be the ratios ofthecurrents in the middle and bottom rows compared to that in thetoprow?

(Answers: a)Rab = 6R/11; Top: ÎVR =ÎVab.

b)Middle: ÎVR = ÎVab/2; Bottom: ÎVR =ÎVab/3.

c)Imiddle/Itop =1/2;Ibottom/Itop = 1/3.

GGRB02H3 Lecture : 2nd lecture

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