1. Two objects of the same volume are placed in water. Object A floats and Object B sinks. The greater
buoyant force is on
A. object A
B. object B
C. Object C
2. A student measures the value of to be 3.154. What is the percent error in the measurement to
Lecture 3
Temperature, Thermal expansion, and
Heat
(
(NJIT Physics, Chapter 10)
y
p
)
http:/web.njit.edu/~sirenko/Phys-103-2005/Phys-103-2012.htm
Physics 103 Spring 2012
2012
Andrei Sirenko, NJIT
1
Last Lecture: Bernoulli's Equation
Water flows smoothly t
1. David is using a sling to whirl a 250-gram rock in a horizontal circle at a constant speed. His plan is to
release the sling to send the rock toward his nemesis Goliath. When the rock is released, it is initially
traveling in the horizontal direction.
EXAM 1
PHYS 103
VERSION A
FALL 2004
NAME: _
_
As a student at NJIT I _, will conduct myself in a professional manner
and will comply with the provisions of the NJIT Academic Honor Code. I also understand that I must subscribe to
the following pledge on ma
Physics 103
:=
F
:= Y
A
P := B
:=
Spring 2011
V
Y = Young Modulus
:=
F
A
Name _
x
:= S
B
S=shear modulus
h
1N
2
1m
P :=
V
L
Student
where B = Bulk modulus 1Pa :=
1Pa
V
M
L
CQZ 1
buoyant force
F
A
pressure at some depth P := Po + g h
B := fluid Vfluid
Lecture 14
Light
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Physics 103 Spring 2012
2012
Andrei Sirenko, NJIT
1
Electromagnetic Spectrum
2012
Andrei Sirenko, NJIT
2
Visible Light
2012
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3
How can we produce light ?
2012
Andrei Sirenko, NJIT
4
What is
Lecture 9
Sound and Waves
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Physics 103 Spring 2012
2012
Andrei Sirenko, NJIT
1
WAVES: QZ2
The figure is a composite of three snapshots, each of a
snapshots
wave traveling along a particular string.
Lecture 10
Electricity
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Physics 103 Spring 2012
2012
Andrei Sirenko, NJIT
1
The 4 Fundamental Forces
F ndamental
Big Bang
(many years ago)
2012
Andrei Sirenko, NJIT
2
GRAND UNIFIED THEORIES:
Interactions between
electric charge
Lecture 11
Capacitance, current,
p
,
,
and resistance
Georg Simon
Ohm
(1789-1854)
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Physics 103 Spring 2012
2012
Andrei Sirenko, NJIT
1
Electric Charge
g
Electric charge is fundamental
characteristic of elementary particles
Two
Lecture 8
Oscillations and Waves
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Physics 103 Spring 2012
2012
Andrei Sirenko, NJIT
1
Simple Harmonic Motion (SHM)
1. Amplitude is
different
2. Period (or frequency)
Period (or frequency)
is
is different.
3. Phase is different.
Lecture 16
Review
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Physics 103 Spring 2012
2012
Andrei Sirenko, NJIT
1
Refraction and
Reflection
Reflection of Light
2012
Andrei Sirenko, NJIT
2
2012
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3
Total internal Reflection
2012
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4
TRUE
Lecture 12
R
Circuits
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Physics 103 Spring 20012
2012
Andrei Sirenko, NJIT
1
Today
EMF devices: ideal vs. non-ideal
Single loop circuits
Multiloop circuits
Examples for CQZ3
E
l f
2012
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2
Resistance:
R=
Lecture 6
Laws of Thermodynamics
(Chapter12)
http:/physics.njit.edu/~sirenko/
htt / h i
jit d / i
k /
Physics 103
2012
Andrei Sirenko, NJIT
1
The Kinetic Theory of Gases;
Mole
Avogadro's Number
g
M is molar mass;
i
l
2012
m is molecular mass
i
l
l
Andrei
Lecture 5
Review for the First Common Exam
http:/web.njit.edu/~sirenko/Phys-103-2005/Phys-1032012.htm
2012 htm
Physics 103 Spring 2012
2012
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1
Summary
2012
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2
2012
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3
Summary
2012
Andrei Sirenko,
1.) Schrdinger Equation: quantum mechanical tunneling
In this problem, you will derive the approximate transmission probability of a particle with
energy E incident on a potential barrier of energy U, U>E. In the figure below the wavefunction
in region I
1. Hydrogen atom:
(a)
(4 pts) In the hydrogen atom, for fixed orbital quantum number l, what happens to the
number of radial anti-nodes as the principle quantum number n goes up? Explain.
(b)
(4 pts) In the hydrogen atom, for fixed principle quantum numbe
1. Calculate the moment of inertia of a uniform ring rotating about an axis through its center and
perpendicular to the plane of the ring. Assume the ring is of mass M and inner radius R 1 and
outer radius R2. (12 points). I=M(R21+ R22)/2
2. A man sits on
Sample Exam #3
Electricity
Physics 103
Spring 2011
1. An electric heater is constructed by applying a potential difference of 110 V across a wire with a
resistance of 5.0 . What is the power rating of the heater?
a.
b.
c.
d.
e.
2.0 kW
2.4 kW
1.7 kW
1.5 kW
FINAL EXAM
=
m
;
V
PHYSICS 103
F
;
A
p=
Av -volume flow rate
T(0C) =
5
[T(0F) - 32];
9
T(0F) =
J
0
kg C
1 hr = 3600 s
k
m
c - specific heat
J
;
kg
n=
= 2f =
E = mv2 + kx2;
v=
P
P
I= =
A 4r 2
F
kg 0 C
= 10dB log
=
E = m(v m )2
m
,
V
m
;
k
period: Tspring
Wave Mechanics Review Questions
1.Two harmonic waves are described by
y = 3 sin (4x 700t) m
1
y = 3 sin (4x 700t 2) m
2
What is the amplitude of the resultant wave?
a.
b.
c.
d.
e.
8.0 m
4.3 m
6.0 m
3.2 m
3.0 m
2. Two harmonic waves are described by
y = 4
Lecture 1
Fluids at rest
Pascal
Physics 103 Spring 2012
Torricelli
http:/web.njit.edu/~sirenko/Phys-103-2005/Phys-103-2012.htm
2012
Andrei Sirenko, NJIT
1
Andrei Sirenko, NJIT
2
PRESSURE
2012
DENSITY and PRESSURE in FLUIDS
Compressibility
C mp
ibilit
Of l
Lecture 2
Fluids in Motion
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Physics 103 Spring 2012
2012
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1
Summary
2012
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2
2012
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3
Last Lecture: FLUIDS at REST
2012
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Lecture 4
Heat, Calorimetry, and Energy in
Thermal processes
(
(NJIT Physics, Chapter 11)
y
p
)
http:/web.njit.edu/~sirenko/Phys-103-2005/Phys-103-2012.htm
Physics 103 Spring 2012
2012
Andrei Sirenko, NJIT
1
Last week:
temperature and thermal expansion
20
1. A particle traveling in the positive x-direction is subjected to an acceleration in the opposite direction.
Which of the following velocity vs. time graphs shown more closely describe the velocity of the
particle as a function of time?
A.
B.
C.
D.
2. A