Very often, success and leadership is the prime goal on a persons mind. Above all
, I believe that character is most important in both leadership as well as everyday
activities as it influences the way I conduct myself. As Aristotle once said, the
ultimat
PHYSICS 112 - REVIEW FOR EXAM 2
CURRENT M rate at which electic charge is flowing in a wire M oe ?UX RESISTANCE V and POTENTIAL DIFFERENCE ?Z related by Ohm's law: ?Z oe MV . The power dissipated in a resistor has magnitude T oe M ?Z oe M 2 V oe ?Z 2 V .
PHYSICS 112 - REVIEW FOR EXAM 1
ELECTRIC CHARGES Electric charges are positive, negative, or zero; they are measured in coulombs (symbol: C). Electric charges are quantized: every object in the universe has a electric charge ; oe , 8/, where 8 oe 0, 1, 2,
REFRACTION WORKSHEET "Triangle" Diagram: On other pages in this set you will find a large triangle that represents a triangular prism. We want to follow the path of a light ray striking one of the surfaces as it passes through the prism and exits one of t
1. Consider the atom denoted by 183 Au 79 The common name of this element is: gold It has 79 electrons, 79 protons, and 183 79 oe 104 neutrons. This atom is radioactive and decays by alpha decay with a half-life of 49 seconds. Determine the fraction of it
HOMEWORK FOR TUESDAY, AUGUST 2, 2005
1. Consider the atom denoted by 183 Au 79 The common name of this element is _. It has _ electrons, _ protons, _ neutrons, and _ quarks. This atom is radioactive and decays by alpha decay with a half-life of 49 seconds
SOLUTIONS 1. A diffraction grating has lines spaced 2.00 .m apart. Let's consider white visible light (wavelengths ranging from 0.400 .m for violet light to 0.700 .m for red light) shining on it. (a) Determine all the angles for which interference maxima
HOMEWORK FOR THURSDAY, JULY 28, 2005
1. A diffraction grating has lines spaced 2.00 .m apart. Let's consider white visible light (wavelengths ranging from 0.400 .m for violet light to 0.700 .m for red light) shining on it. (a) Determine all the angles for
Consider the interference between two slits separated by a distance . on which light of wavelength - shines, producing a pattern of dark and bright fringes on a screen a distance H away from the slits. First draw a sketch of this physical situation, showi
HOMEWORK ASSIGNMENT FOR JULY 26, 2005
Consider the interference between two slits separated by a distance . on which light of wavelength - shines, producing a pattern of dark and bright fringes on a screen a distance H away from the slits. First draw a sk
HOMEWORK SOLUTIONS FOR JULY 21 1. An object is placed 10 cm from the vertex of a concave mirror of radius of curvature 12 cm. Find the image distance and the magnification, and characterize the image in the usual way. Check your results by ray tracing usi
HOMEWORK FOR TUESDAY, JULY 19, 2005 In this problem we will consider the path of light rays from air into glass and vice versa. The glass has a flat, horizontal surface, and the air is above it. We want to determine the angles for the reflected and refrac
C 1. t F ext B
The magnitude F of the magnetic field is increasing.
Flux: increasing due to increasing F . t F loop must be down ( OE ) to counteract upward increasing flux; current is then clockwise.
C 2. t OE F ext B
The magnitude F of the magnetic fiel
Homework for Thursday, July 14, 2005 (Bastille Day) Name _ Section _
For each of the following situations a circuit loop is shown in a uniform t external magnetic field F . Determine in each case the direction (clockwise or counterclockwise) of the induce
PHYSICS 112 - REVIEW FOR EXAM 3
t MAGNETIC FLUX: The magnetic flux through a plane circuit is F oe FE cos ), where ) is the angle between F 2 and the normal ( perpendicular) to the plane of the circuit. Units: T-m . MAGNETIC INDUCTION The current induced
PHYSICS 112 - SPRING 2003 - EXAM 1 - February 12, 2003 Name: _ Recitation Section Number: _ SHOW YOUR WORK! Although some of these problems are multiple-choice, full credit will be given only if you explain how you arrived at your answer. Either show your
CLASS EXERCISE #3 - 15 June 2005
Consider the electrical force between pairs of electric charges as shown. These are three independent problems, with different charges but the same separation < in each case. U represents the same number of coulombs in eac
CLASS EXERCISE #2 - 14 June 2005
The diagram below shows three charges which are identical in magnitude (same number of coulombs), one of which is positive and the other two negative S is positive, < is negative. The middle charge is exactly halfway betwe
CLASS EXERCISE # 1 - 13 June 2005
1. (2 points) Determine the B and C components of a vector of magnitude 4.7 m in a direction 35 west of north. Be sure to include the correct signs! The angle of this vector is ) oe 90 35 oe 125 The B component is E cos )
Topic 4. Magnetic Forces and Fields
Do currents exert forces on each other in the same way that charges do? Our study of electric forces and electric fields began with a simple experimental observation: charged particles exert forces on each other. From t
TOPIC 3. Electric Currents ELECTRIC CURRENTS
What causes charges to flow, and what hinders the free flow of charge? The most important practical applications of electrical phenomena are in the innumerable forms of electronic devices. In these, it is the m
TOPIC 2. ELECTRICITY Topic 2A. Electric Charges and Forces
ELECTRIC CHARGE
Objects, including elementary particles like the electron and proton, have a number of properties. The one we have studied the most so far is mass. The mass of an object is importa
TOPIC 1. REVIEW
INTRODUCTION
In Physics 112 we will be making heavy use of vectors, so we will start with a review of vectors. The important vector quantities we will be discussing are electric forces, electric fields, electric currents, magnetic forces,
USEFUL INFORMATION
IMPORTANT PHYSICAL CONSTANTS - 299,792,458 m/s 300 , 10) m/s K oe 6.673 , 10" N m# /kg# 5/ oe
1 41%0
(speed of light) (gravitational constant) (electrical constant) (Planck's constant) (permittivity of free space) (fundamental electric
PHYSICS 112 - SUMMER 2005 - EXAM 3 Name: _ Recitation Section: _
NO CALCULATORS ALLOWED - BUT, LUCKILY, NO CALCULATORS NEEDED. SHOW YOUR WORK! Full credit will be given only if you explain how you arrived at your answer. Either show your work (especially
PHYSICS 112 - FINAL EXAM (second, comprehensive part) - SPRING 2005
cos2 0 oe 1 cos2 30 oe 0.75 cos2 45 oe 0.50 cos2 60 oe 0.25 cos2 90 oe 0.
1. [9 points total] An electric charge of 2.0 .C is placed at a point 3.0 m from a fixed electric charge of 3.0 .
PHYSICS 112 - SPRING 2004 - EXAM 2 NO CALCULATORS. SHOW YOUR WORK! Full credit will be given only if you explain how you arrived at your answer. Either show your work (especially in a calculation) or give a short explanation. Nothing elaborate is required
PHYSICS 112 - EXAM 4 (first part of final exam) - SPRING 2003
Use only a right-handed coordinate system ( B C D along thumb, forefinger, and middle finger of your right hand when these three fingers are perpendicular to one another). Show your calculation
PHYSICS 112 - SPRING 2003 - EXAM 3 SHOW YOUR WORK! Full credit will be given only if you explain how you arrived at your answer. Either show your work (especially in a calculation) or give a short explanation. Nothing elaborate is required, but the grader
HOMEWORK for TUESDAY, JULY 12, 2005
For each of the following situations two circuit loops are shown in a uniform t external magnetic field F ext . Let the one on the left have a clockwise current and the one on the right have a counterclockwise current.