Physics 1202W.100
Fall 2012
October 25
th
Discussion Week #8
Relevant Equations
Geometric Optics:
⁄
(
) (
)
Special topics in optics:
Power of a lens:
Power of Accommodation (Eye):
Angular magnification of Simple
Magnifier:
Electric Forces/Potential
⃗⃗
̂
⃗⃗
⃗⃗
⃗⃗
̂
∫
⃗⃗
⃗⃗
̂
∮
⃗⃗
⃗⃗
Special topics in Electric Interaction:
Electric dipole moment:
⃗
Energy electric dipole:
⃗
⃗⃗
of a long, straight wire:
(
)
Capacitance:
⁄
Energy of a Capacitor:
Circuits
∑
∑
∑
∑
Special topics in Circuits
Resistivity:
Conductivity:
Time Constant:
RC Current:
Kinematics (linear/rotational)
⁄
Constant angular motion:
Forces and Torque
∑
⃗⃗
⃗⃗
⃗
⃗
⃗
⃗⃗
⃗ 
Momentum (linear/angular)
⃗
⃗
⃗
⃗
⃗
Energy and Power
∫
⃗⃗
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Physics 1202W.100
Fall 2012
October 25
th
Constants:
⁄
⁄
Math
⃗

⃗

Problems
1.
You are working in a research group investigating neuron activity in the human brain. Your group uses a
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