CHAPTER 18
FLUID MOTION
density of the compressed air? (b) How large a volume would the same gas occupy at typical 3 atmospheric density of 1.2 kg/m ?
Section 18-1: Describing Fluids: Density and Pres
CHAPTER 4
MOTION IN MORE THAN ONE DIMENSION
Problem
3. An object is moving in the x direction at 1.3 m/s when it is subjected to an acceleration given by a = 0.52 m/s2 . What is its velocity vector af
PART 3
THERMODYNAMICS TEMPERATURE AND HEAT
Solution
Temperature dierences on the Fahrenheit and Celsius scales are related by TF = (9/5) TC , so ( 9 ) 5 (10 C ) = 18 F. (Note that a temperature dieren
CHAPTER 21
HEAT, WORK, AND THE FIRST LAW OF THERMODYNAMICS
750 J of work on its surroundings. By how much does the internal energy of the gas change?
ActivPhysics can help with these problems: Activit
CHAPTER 7
WORK, ENERGY, AND POWER
How much work do you do on the barbell during this time? (c) You lower the barbell to the ground. Now how much work do you do on it?
ActivPhysics can help with these
CHAPTER 10
SYSTEMS OF PARTICLES
y 35 Mg
ActivPhysics can help with these problems: Activities 6.6, 6.7 Section 10-1: Center of Mass Problem
1. A 28-kg child sits at one end of a 3.5-m-long seesaw. Whe
CHAPTER 12
ROTATIONAL MOTION
Problem
4. A 25-cm-diameter circular saw blade spins at 3500 rpm. How fast would you have to push a straight hand saw to have the teeth move through the wood at the same r
CHAPTER 5
FORCE AND MOTION
Solution
Assume that the seatbelt holds the passenger rmly to the seat, so that the passenger also stops in 0.14 s without incurring any secondary impact. Then the passenger
CHAPTER 13
ROTATIONAL VECTORS AND ANGULAR MOMENTUM
ActivPhysics can help with these problems: Activities 7.1, 7.16, 7.17 Section 13-1: Angular Velocity and Acceleration Vectors Problem
1. A car is hea
CHAPTER 11
COLLISIONS
an average impulsive force of 1.2105 N acts for 0.25 s? (b) If the car's mass is 1800 kg, for what initial speed would this collision bring the car to a stop?
ActivPhysics can he
CHAPTER 9
GRAVITATION
radius. Thus, R/RE = 1/ 3 = 57.7% gives the new, shrunken radius.
ActivPhysics can help with these problems: Activity 4.8 Section 9-2: The Law of Universal Gravitation Problem
1
CHAPTER 8
CONSERVATION OF ENERGY
Solution
Take the origin at point 1 in Fig. 8-26 with the x-axis horizontal to the right and the y-axis vertical upward. The gravitational force on an object is consta
Physics 8a Section 110 Practice Midterm #1 Solutions: 1. Choose up as +y:
a. b. c. hmax = h + a h g
Known: a = 5.00 m/s^2 g = 9.8 m/s^2 h = 2000 m
v f = 2 ghmax The gass momentum changes as it leaves
Physics 101 Fall 2007: Pledged Problems 8 System of Particles & Momentum
Time allowed: 2 hours in one sitting Due: Monday, November 5 at 5PM in the box marked Phys101/102 in the Physics Lounge You may
MasteringPhysics: Assignment Print View
http:/session.masteringphysics.com/myct/assignmentPrint?assignmentI.
Assignment Display Mode:
Warwick2008
PX132 Assignment 4
Due at 11:00am on Monday, December
CHAPTER 16
WAVE MOTION
1.25 m apart. What is the speed of the waves on the cable? Compare with the speed of light in vacuum.
ActivPhysics can help with these problems: Activities 10.1, 10.2, 10.7, 10.
CHAPTER 17
SOUND AND OTHER WAVE PHENOMENA
How many miles away did the ash occur? Neglect the travel time for the light (why?)
ActivPhysics can help with these problems: Activities 10.3, 10.4, 10.5, 10
CHAPTER 20
THE THERMAL BEHAVIOR OF MATTER
Problem
4. An ideal gas occupies a volume V at 100 C. If the gas pressure is held constant, by what factor does the volume change (a) if the Celsius temperatu
CHAPTER 22
THE SECOND LAW OF THERMODYNAMICS
Solution
(a) There are 2 directions for each molecule, so the number of states is 24 = 16. (b) Two of these, all to the right or all to the left, have all m
PART 1
MECHANICS MOTION IN A STRAIGHT LINE
course in 2 h 12 min 36 s. What was Thugwame's average speed, in meters per second?
CHAPTER 2
ActivPhysics can help with these problems: Activities 1.21.9 Se
CHAPTER 3
THE VECTOR DESCRIPTION OF MOTION
Problem
3. A migrating whale follows the west coast of Mexico and North America toward its summer home in Alaska. It first travels 360 km due northwest to ju
PART 2
OSCILLATIONS, WAVES, AND FLUIDS OSCILLATORY MOTION
cos[(10 s1 )t]. (b) The maximum (positive) velocity occurs at t = 0 if sin = 1 (from Equation 15-10), therefore, the motion is described by Eq