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March 31, 2015

March 31, 2015

Posted by **Thomas** on Tuesday, February 1, 2011 at 2:53am.

a)81 N/C

b)74 N/C

c)61 N/C

d)88 N/C

e)20 N/C

2. A +2nC point charge is placed at one corner of a square (1.5m on a side), and a -3.0nC charge is placed on a corner diagonally away from the first charge. What is the magnitude of the electric field at either of the two unoccupied corners?

a)20 N/C

b)14 N/C

c)4 N/C

d)12 N/C

e)8 N/C

- Physics; Elect. -
**bobpursley**, Tuesday, February 1, 2011 at 9:04am2. What is Pythagoras theorem? figure the E from each, then use the theorem.

1. Simple integration. draw the figure.

E=int k (9.0E-9)/(4-x)^2 dx

integrate from x=0 to 3

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