PY 121 Exam 3 Practice (Ch. 26-29)
1) When two or more capacitors are connected in parallel across a potential difference
A) the potential difference across each capacitor is the same.
B) each capacitor carries the same amount of charge.
C) the equivalent
Ch. 24 In Class Problems
24.3 A 40.0-cm-diameter circular loop is rotated in a uniform electric
field until the position of maximum electric flux is found. The flux in
this position is measured to be 5.2
105 N m2/C. What is the
magnitude of the electric f
Ch. 25 In Class Problems
25.3 (a) Calculate the speed of a proton that is accelerated from rest through an
electric potential difference of 120 V.
(b) Calculate the speed of an electron that is accelerated through the same
potential difference.
25.13 Two
Ch. 26 In Class Problems
5. A 50.0-m length of coaxial cable has an inner conductor that has a diameter of
2.58 mm and carries a charge of 8.10 C. The surrounding conductor has an inner
diameter of 7.27 mm and a charge of 8.10 C. Assume the region between
Ch. 27 In Class Problems
9. The quantity of charge q (in coulombs) that has passed through a surface of
area 2.00 cm2 varies with time according to the equation q = 4t3 + 5t + 6, where t is
in seconds.
(a) What is the instantaneous current through the sur
Chapter 23 In Class Problems
15. Three charged particles are located at the corners of an equilateral triangle as
shown in the figure below (let q = 1.40 C, and L = 0.530 m). Calculate the total
electric force on the 7.00-C charge.
14. Two small beads hav
Ch. 18 In Class Problems
8. Two identical loudspeakers are placed on a wall 2.00 m apart. A listener
stands 3.00 m from the wall directly in front of one of the speakers. A single
oscillator is driving the speakers at a frequency of 300 Hz.
(a) What is th
Chapter 17 In Class Problems
25. The power output of a certain public-address speaker is 6.00 W.
Suppose it broadcasts equally in all directions.
(a) Within what distance from the speaker would the sound
be painful to the ear?
(b) At what distance from th
Chapter(15(In(Class(Problems(
(
4. In an engine, a piston oscillates with simple harmonic motion so that its
!
position varies according to the expression, ! = 5.00!cos!(2! + )
!
where x is in centimeters and t is in seconds.
(a) At t = 0, find the positi
Preparation For Exam 2
Part A: Conceptual Questions
1) When two point charges are a distance d part, the electric force that each one feels
from the other has magnitude F. In order to make this force twice as strong, the distance
would have to be ch
Preparation for the final exam
Please review the following:
Simple harmonic motion-displacement, speed, acceleration, frequency, amplitude,
mechanical energy (kinetic and potential) etc.
Traveling waves and standing waves.
Electric fields and forc
Ahmad Abu Hardan
10/27/2015
PY-121-M01
Lab partners:
Hadeel Rahhal
Aya Hemaid
Experiments 6,7a & 7b:
Resistances in Series and in Parallel
Voltages in Circuits
Currents in Circuits
Experiment 6: Resistances in Series and in Parallel
Introduction
There are
Ahmad Abu Hardan
10/6/2015
PY-121-M01
Lab partners:
Urvi Rana
Raymon Willis
Hadeel Rahhal
Aya Hemaid
Jairo perez
Experiment 4:
Tube Length and Resonant
Modes
Introduction
For any given tube length, there are a variety of resonant frequencies
frequencies a
Ahmad Abu Hardan
9/29/2015
PY-121-M01
Lab partners:
Hadeel Rahhal
Aya Hemaid
Wave Speed
Raymon Willis
Experiment 3:
Urvi Rana
Jairo perez
Introduction
In this experiment we will determine the wave speed in a stretched string
using two methods.
First, we w