Consider the given statement,
A pirate chest rests at the bottom of an ocean. If the water is still, the net force it exerts on the
chest will be in downward direction.
The water exerts a buoyant force on the pirate chest. Since, it is placed at the botto
Consider the given statement,
Light traveling in a medium of index of refraction
index of refraction
n2
n1
is incident on another medium having an
.
Since, the total internal reflection takes place only when the light that have high refraction index
incid
Consider the diagram,
L is the length of the homogeneous rectangular board that is hinged at one end at the ground
level.
o
is the angle at the horizontal surface.
Let h is the height of the ball from the ground level. Therefore, the height is equal to,
h
Consider the given data,
Radius of circular loop,
r 0.23m
Current through the loop,
i 2.6 A
Magnitude of magnetic field,
B 0.95T
(a)
Since, the loop is circular. Calculate the area of the circular loop. Assume A is the area of the
circular loop and
is the
Consider the given diagram,
R is the outer radii of the spool and r is the inner radii of the spool. m is the mass of the spool
and I is the moment of inertia.
is the angle of contact between spool and table.
When the spool is pull with the help of the st
(12)
Consider the given diagram,
Since, the magnetic is parallel to and in the direction of the positive z-axis. When an electron
enters in the magnetic field, it gets deflected. Hence, the angle must be
The force experienced by the electron,
(1)
F qvBsi
Consider the given data,
Power of lens,
P 4.25diopters
Normal vision point,
v 25 cm
Consider the expression to calculate the focal length,
. (1)
100
f
P
Substitute the values in equation (1),
100
4.25
23.52 cm
f
Since, the focal length of the lens is pos
Consider the given data,
Initial pressure at the inlet,
Change in the pressure,
Isentropic efficient,
P1 11psia
P2 20 psia
82 %
Diffuser inlet velocity,
v1 1200ft / s
Let, the initial relative pressure of the air is
Pr1
and initial enthalpy is
h1
.
Assum
Consider the given data,
Energy required to fly over land for bird,
E land 10 kcal / mile
Energy required to fly over water for bird,
E water 14 kcal / mile
(a)
According to the question, consider the diagram for the given problem.
Assume, the distance co
Consider the given data,
Potential difference,
V 4.1 108 volt
Distance of charge center form ground,
Radius of charge sphere,
r
d 10 km 10000 m
1
0.5 km 500 m
2
Charge across the cloud center,
Q 25C
(a)
Assume, E is the electric field between charge cent
1. Ma mre / djeuner / huit heures
Ma mre djeune huit heures.
2. mon frre / chercher / ses devoirs. Mon frre cherches ses deviors.
3. mon pre / trouver / son journal. Mon pere trouvez son journal.
4. mes amis / commencer / jouer . Mes amis commence a jouer
10.
11.
Physics 112
Final Exam Review — Mult Ch.
Which is a scalar quantity
a) displacement b) distance c) force d) acceleration
A group of bike riders took a 4.0 hour trip. During the first 3.0 hours, they traveled a total of
50 kilometers, but during th
ANSWERS TO EXAM 3 REVIEW QUESTIONS FROM THE BOOK
CHAPTER 8 Review & Discussion:
2. Mercury is seldom seen with the naked eye because it is always close to the Sun in the sky, so that
usually the Sun is visible when Mercury is.
4. The escape velocity is ve
ANSWERS TO EXAM 2 REVIEW QUESTIONS FROM THE BOOK
CHAPTER 4 Review & Discussion:
1. Spectroscopy is the study of the spectra emitted by astronomical objects like stars and planets. It is
important because it allows the determination of the composition of t
ANSWERS TO EXAM 1 REVIEW QUESTIONS FROM THE BOOK
CHAPTER 1 Review & Discussion:
5. A constellation is a chance grouping of stars as viewed from the Earth. Usually the stars in a
constellation are not actually close to each other, but simply appear to be n
ANSWERS TO BOOK REVIEW QUESTIONS FROM CHAPTERS 15 AND 16
CHAPTER 14 Review & Discussion:
1. The Trojan asteroids are located at the stable Lagrange points 60 degrees ahead of and behind the orbit
of Jupiter. The Apollo asteroids cross the orbit of Earth.