HW 2A - Ch. 21
This print-out should have 15 questions.
Multiple-choice questions may continue on
the next column or page nd all choices
before answering.
001 (part 1 of 2) 10.0 points
A charge Q is distributed uniformly along the
x axis from x1 to x2 .
brice (db32768) Home Work # 6 lopes (22201)
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001 10.0 points
At distance r from a point charge q, the electric poten
Chapter 2
Innite Products and Elementary Functions
The objective in this chapter is to lay out a working background for dealing with
innite products and their possible applications. The reader will be familiarized
with a specic topic that is not often inc
Lecture 10. EMF and Batteries, Power in Electric Circuits
Outline:
Batteries.
Non-ideal batteries: internal resistance.
Potential distribution around a complete circuit
Energy and power in electric circuits.
Lecture 9:
DC current: flow of charge carriers,
Lecture: Lead-acid batteries
ECEN 4517/5517
How batteries work
Conduction mechanisms Development of voltage at plates Charging, discharging, and state of charge
Key equations and models
The Nernst equation: voltage vs. ion concentration Battery model Batt
Word Equations Worksheet
Write the word equations for each of the following chemical reactions:
1)
When dissolved beryllium chloride reacts with dissolved silver nitrate in
water, aqueous beryllium nitrate and silver chloride powder are made.
2)
When isop
rodriguez (hr6898) Homework Ch 11 jisonna (P2425)
This print-out should have 10 questions.
Multiple-choice questions may continue on
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before answering.
1
equilibrium?
1. b2 m1 = a2 m2
2. a m1 = b m2
001 (part 1 of 2)
PHY2049
Chapter 27 Solutions
Problem 1:
Wire B is three times longer than wire A, and the two wires have the same
volume. If both wires are made of the same substance and if the resistance
of wire A is 9 Ohms, what is the resistance of wire B (in Ohms).
A
rodriguez (hr6898) Homework Ch 16-20 jisonna (P2425)
This print-out should have 23 questions.
Multiple-choice questions may continue on
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before answering.
The source is moving away from the detector,
so vs < 0 and sin
rodriguez (hr6898) Homework Ch 14,15 jisonna (P2425)
This print-out should have 26 questions.
Multiple-choice questions may continue on
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before answering.
001 10.0 points
The displacement in simple harmonic motion
is
rodriguez (hr6898) HW Ch 7, 13 jisonna (P2425)
This print-out should have 33 questions.
Multiple-choice questions may continue on
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before answering.
001 10.0 points
When an object is moved from rest at point
A to rest
6. Analysis questions Answers
6.1 spring Oscillator
Q1. k average
n
Mi
Q.1 M=
i =1
n
k (N/m) mean
( 17.8 )+ ( 19.5 )+ ( 18.8 )+(18.9)
=18.75 N /m
4
Standard Deviation
Formula
=
i M
M
n2
i=1
Spring constants standard deviation
k
k 1
k
k 2
k
=
=
k 3
2+(
HW 2A - Ch. 21
This print-out should have 15 questions.
Multiple-choice questions may continue on
the next column or page nd all choices
before answering.
001 (part 1 of 2) 10.0 points
A charge Q is distributed uniformly along the
x axis from x1 to x2 .
PHY2049
Chapter 25 Solutions
Problem 1:
If the potential difference between points A and B is equal to
VA-VB = 3x104 Volts, how much work (in milliJoules) must be done
(against the electric force) to move a change particle (Q = 3 microC) from
point A to p
PHY2049
Chapter 36 Solutions
Problem 1:
Light from a small region of a 100 Watt incandescent bulb passes through a
yellow filter and then serves as the source for a Young's double-slit
interference experiment. Which of the following changes would cause th
PHY2049
Chapter 28 Solutions
R0 = 3
Problem 1:
Consider the circuit consisting of an EMF
and three resistors shown in the Figure. 24 V
R1 = 4
R2 = 12
How much current flows through the 4
resistor (in Amps)?
I1
I2
I
Answer:
3
Solution: The original cir
PHY2049
Chapter 22 Solutions
Problem 1:
A +15 microC charge is located 40 cm from a +3.0 microC charge. The
magnitude of the electrostatic force on the larger charge and on the smaller
charge (in N) is, respectively,
Answer:
2.5, 2.5
Solution: The magniti
PHY2049
Chapter 24 Solutions
Problem 1:
Consider a spherical conducting shell S1 of radius
R on which charge +Q is placed. Without touching
or disturbing it, this shell is now surrounded
concentrically by a similar shell S2 of radius 2R on
which charge -Q
PHY2049
Chapter 30 Solutions
I
Problem 1:
d
P
A
The bent wire carries current I, as
shown the Figure. What is the
magnetic field at point P, at distance d
B
o bend
directly opposite the 90
(k = 0/4)?
Answer: kI/d, out of page
v
dl r = 0 and wire B
Solutio
PHY2049
Chapter 33 Solutions
Problem 1:
If the total energy in an LC circuit is 5.0 microJoules and L=25 milliH,
then what is the maximum current (in milliA)?
Answer: 20
Solution: The maximum stored energy in the inductor is
U max =
1 2
LI max
2
and solvi
PHY2049
Chapter 32 Solutions
Problem 1:
A parallel-plate capacitor whose plates have radius R is being charged by a
current I. What is the magnitude of the magnetic field (in Tesla) between
the plates a distance r = R/2 from the center?
Answer: kI/R
Solut
PHY2049
Chapter 31 Solutions
Problem 1:
A long straight wire carries current I. Nearby
and lying in the same plane is a circular loop, as
shown in the Figure. If the loop is moved
toward the wire, what will be the direction of the
I
current induced in the
PHY2049
Chapter 23 Solutions
Problem 1:
What is the magnitude (in milliN) and direction of the electrostatic force on
r
a -2.0 microC charge in a uniform electric field given by E = (100 N / C ) x ?
Answer:
0.2 in the -x direction
Solution: The electrosta
PHY2049
Chapter 34 Solutions
Problem 1:
The electric field component of an electromagnetic wave traveling in
a vacuum is given by Ey = E0 sin (kx -t), where E0 = 300 V/m and
k=107/m. What are the frequency of the oscillations (in Hz) and the
direction of
PHY2049
Chapter 37 Solutions
Problem 1:
If monochromatic light of wavelength 500 nm is incident on a single narrow
slit 0.02 mm wide, what is the width of the central bright spot (in cm) on a
screen that is 3 meters from the slit? (Hint: the width of the
PHY2049
Chapter 35 Solutions
Problem 1:
An object placed 180 cm in front of a spherical mirror produces an image
with a magnification m = 0.1. What happens to the image when the object
is moved 150 cm closer to the mirror?
Answer: the image increases in s
PHY2049
Chapter 29 Solutions
Problem 1:
A charged particle, Q = 0.5 C, enters a region with a uniform magnetic field
r
r
B = 2 x + 3 y + 4 z (in Tesla). If its velocity is given by v = 2 x + 3 y + 2 z
(in m/s), what is the magnitude of the magnetic force