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

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

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