CHAPTER
2
Motion in One Dimension
1*
What is the approximate average velocity of the race cars during the Indianapolis 500?
Since the cars go around a closed circuit and return nearly to the starting point, the displacement is nearly zero, and
CHAPTER
19
Heat and the First Law of Thermodynamics
1*
Body A has twice the mass and twice the specific heat of body B. If they are supplied with equal amounts of heat, CA = 4CB; TA = TB/4
how do the subsequent changes in their temperatures com
CHAPTER
1
Systems of Measurement
1*
Which of the following is not one of the fundamental physical quantities in the SI system?
(a) mass (b) length (c) force (d) time (e) All of the above are fundamental physical quantities. (c) Force is not a f
Practice Final Exam
Physics 10
Problem 1
Catwoman leaves the ground at a height of 200m above a lake. She jumps with an initial speed
of 10m/s, and, after 7s, she is able to land just past the lake as shown in the picture below.
y
vi = 10 m/s
?
200 m
0m
l
Practice Hour Exam 2
Physics 10
Problem 1
Two balls, m1=0.5kg and m2=0.75kg, collide as shown in the picture below where you have a before and after collision picture of the balls with the pertinent information. After the collision, the
two balls stick to
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Problem on Heat Transfer
A cubic box of outer side 20cm is made of berglass and has walls 0.5 cm thick. The box hangs
in the air, and it contains 5kg of ice just taken from a freezer at -10C. The temperature outside of
the box is 20C. Heat i
Practice Hour Exam 1
Physics 10
Problem 1
A man jumps from a springboard into a swimming pool. His initial velocity is of 6.5m/s oriented
at an angle of 55 with respect to the level of the water. Before reaching the water, the man trav
els 5m horizontally
l l *
"Lei , . cfw_a
7 gateway is;
Tl (Pfoww can 23 Collihicw 03% '
Puck A and B have the same mass mA=mB=m./ Pucks A and B rest on ice, and we can assume
there is no friction between the pucks and the ice. Puck A hits puck B which is at rest. The Speed
Problem with Carnot Cycle
One mole of an ideal monoatomic gas has volume of . I (31$, , , , ,
V1=0.03m3 and it is at a pressure of P1=100kPa. 1x105 l ' t ' '1
Through an isothermal process, the gas expands to ' ' . x i _._
an unknown volume V2 a
Problem with Equibriumb Pm,
A 4m long rod pivoted in the ceiling is held buy a verti-
cal cable attached to the ceiling and sustaining the rod MI
0.5m away from its end. The rod makes an angle of 30 0.
with the ceiling, and it weights 1kg. Attached
Practice Hour Exam 2
Problem 1 Physics 10
Two balls, m1=0. 5kg and m2=0 75kg, collide. as shown in the picture below where you have a
before and after collision picture of the balls with the pertinent information After the collision,
the two balls stick t
Practice Final Exam
Problem 1 Physics I O
A paragliding woman leaves the ground at a height of 200m above a lake. She jumps with an
initial speed of lOm/s, and, after 75, she is able to land just past the lake as shown in the picture
below.
Ag at: 236:
CHAPTER
20
The Second Law of Thermodynamics
1*
Where does the energy come from in an internal-combustion engine? In a steam engine? steam.
Internal combustion engine: From the heat of combustion (see Problems 19-106 to 19-109). Steam engine: Fr
CHAPTER
15
Wave Motion
1* A rope hangs vertically from the ceiling. Do waves on the rope move faster, slower, or at the same speed as they move from bottom to top? Explain. They move faster as they move up because the tension increases due to the
CHAPTER
3
Motion in Two and Three Dimensions
1* Can the magnitude of the displacement of a particle be less than the distance traveled by the particle along its path? Can its magnitude be more than the distance traveled? Explain. The magnitude of
CHAPTER
4
Newton's Laws
Note: For all problems we shall take the upward direction as positive unless otherwise stated. 1* 2 How can you tell if a particular reference frame is an inertial reference frame? Suppose you find that an object in a par
CHAPTER
5
Applications of Newton's Laws
1* Various objects lie on the floor of a truck moving along a horizontal road. If the truck accelerates, what force acts on the objects to cause them to accelerate? Force of friction between the objects and
CHAPTER
6
Work and Energy
1* True or false: (a) Only the net force acting on an object can do work. (b) No work is done on a particle that remains at rest. (c) A force that is always perpendicular to the velocity of a particle never does work on
CHAPTER
7
Conservation of Energy
1* What are the advantages and disadvantages of using the conservation of mechanical energy rather than Newton's laws to solve problems? Generally simpler, involving only scalars; cannot obtain some details, e.g.,
CHAPTER
8
Systems of Particles and Conservation of Momentum
1* Give an example of a three-dimensional object that has no mass at its center of mass. A hollow sphere. 2 Three point masses of 2 kg each are located on the x axis at the origin, x =
CHAPTER
9
Rotation
1* Two points are on a disk turning at constant angular velocity, one point on the rim and the other halfway between the rim and the axis. Which point moves the greater distance in a given time? Which turns through the greater
CHAPTER
10
Conservation of Angular Momentum
1* True or false: (a) If two vectors are parallel, their cross product must be zero. (b) When a disk rotates about its symmetry axis, is along the axis. (c) The torque exerted by a force is always perp
CHAPTER
11
Gravity
1* True or false: (a) Kepler's law of equal areas implies that gravity varies inversely with the square of the distance. (b) The planet closest to the sun, on the average, has the shortest period of revolution about the sun. (a
CHAPTER
12
Static Equilibrium and Elasticity
1* True or false: (a) F = 0 is sufficient for static equilibrium to exist. (b) F = 0 is necessary for static equilibrium to exist. (c) In static equilibrium, the net torque about any point is zero. (
CHAPTER
14
Oscillations
1* Deezo the Clown slept in again. As he roller-skates out the door at breakneck speed on his way to a lunchtime birthday party, his superelastic suspenders catch on a fence post, and he flies back and forth, oscillating w
tbmewtk 7
Ballistic Pendulum
A bullet of mass 40g has an initial velocity of 200m/s. The bullet hits and embeds itself in a
2.5kg wooden block attached to two 2m long, strings hanging from the ceiling.
a) What is the velocity of the wooden block with