Cap
tulo 1
Eletrosttica
a
1.1
Pelas condies de equil
co
brio T = P + FE , ou seja:
T sin
T cos
= FE
= P
Se l o comprimento de cada linha, ento a distncia d entre as duas
e
a
a
q2
1
part
culas dada p
FORM 0 [1] The work function of copper is 4.7 eV. Electrons are emitted in the photoelectric eect if the wavelength of the incident light is [A] more than the threshold wavelength of 1.14 1015 nm. [B]
FORM 0 [1] An ambulance at rest has a siren that emits a frequency of 400 Hz. The ambulance is moving toward a pedestrian with a speed 34 m/s on a day when the speed of sound in air is 340 m/s.The ped
Competition in Physics (Sample Questions)
Multiple Choice Part 1) Given the vectors A=2i+3j, B = i -j (i and j are unit vectors in the x and y directions respectively) and C=A+B, the magnitude of C is
FORM 0 UM Physics Competition 13 Apr 2002
When you need a numerical value for g , use 10 m/s2 . [1] Which of the following electromagnetic waves is not emitted as a result of changes in the energy lev
[1] A 240-Volt appliance draws 15 A of current for a period of 2 hours. How much energy in kilowatt-hours does it consume? [A] 7.2 [B] 2.6 107 [C] 7200 [D] 3600 [E] 0.8 [2] A 100 kg person stands on a
The ratio of (1 kilogram/1 milligram) is .1 a) 10^2 b) 10^3 c) 10^6 d) 10^-3 e) 10^-6 The length of each side of a square is 4.0 m. What is the length of the diagonal .2 of the square (shown as a dash
AP Physics C: Mechanics 2009 Free-Response Questions
The College Board
The College Board is a not-for-profit membership association whose mission is to connect students to college success and opportun
AP Physics C: Mechanics 2010 Free-Response Questions
The College Board
The College Board is a not-for-profit membership association whose mission is to connect students to college success and opportun
PHYSICS
PHYSICS B
PHYSICS C: MECHANICS
PHYSICS C: ELECTRICITY AND
MAGNETISM
Course Description
M AY 2 010, M AY 2 011
The College Board
The College Board is a not-for-proﬁt membership association who
SAT Subject Physics Facts & Formulas
This document is a concise but comprehensive guide to the facts and formulas typically used in the material covered by the SAT Subject physics test. The test is de
Capacitors & Capacitance
Key contents
Capacitors
Calculating capacitance
Energy stored in a capacitor
Capacitors with dielectric materials
25.2: Capacitance:
To store charge
To store energy
To control