Homework Set 3: Solutions
Due: Monday, February 25, 2013
Chapter 6
Q6.4
5 points
If it takes total work W to give an object a speed v and kinetic energy K , starting
from rest, what will be the objects speed (in terms of v ) and kinetic energy (in terms
o
Homework Set 1: Solutions
Due: Monday, January 28, 2013
Chapter 2
Q2.17
5 points
A dripping water faucet steadily releases drops 1.0 s apart. As these drops fall, will the
distance between them increase, decrease, or remain the same? Prove your answer.
Th
PHYSICS 120
Practice Review 1
Honors pledge
On my honor, I pledge that the work on this test is my own and that I have
neither given nor received any unauthorized help.
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You have 50 minutes to complete this exam.
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PHYSICS 130
Practice Review 3
Honors pledge
On my honor, I pledge that the work on this test is my own and that I have neither
given nor received any unauthorized help.
Name:
Signature:
Date:
You have 50 minutes to complete this exam.
In order to receiv
Homework Set 2: Solutions
Due: Friday, February 8, 2013
Chapter 4
Q4.16
5 points
You can play catch with a softball in a bus moving with constant speed on a straight
road, just as though the bus were at rest. Is this still possible when the bus is making
Homework Set 4: Solutions
Due: Wednesday, March 13, 2013
Chapter 8
Q8.2
8 points
Suppose you catch a baseball and then someone invite you to catch a bowling ball
with either the same momentum or the same kinetic energy as the baseball. Which
would you cho
Homework Set 5: Solutions
Due: Monday, March 25, 2013
Chapter 9
Q9.2
6 points
A diatomic molecule can be modeled as two point masses, m1 and m2 , slightly separated (Fig. Q9.2). If the molecule is oriented along the y -axis, it has kinetic energy
K when i
Homework Set 6: Solutions
Due: Monday, April 8, 2013
Chapter 14
Q14.5
8 points
If a uniform spring is cut in half, what is the force constant of each half ? Justify
your answer. How would the frequency of SHM using a half-spring dier from the
frequency us
Homework Set 7: Solutions
Due: Wednesday, April 17, 2013
Chapter 16
Q16.6
12 points
In a popular and amusing science demonstration, a person inhales helium and then
his voice becomes high and squeaky. Why does this happen? (Warning: Inhaling too
much heli
Announcements
Motion in One Dimension
Motion Along a Straight Line
Sections 2.12.3
Motion Along a Straight Line
Conclusions
Announcements
Motion in One Dimension
Reading Assignment
Read sections 2.42.6 (Motion Along a Straight Line)
Homework Assignment 1
Announcements
Constant Acceleration
Freely Falling Objects
Motion Along a Straight Line
Sections 2.42.6
Motion Along a Straight Line
Conclusions
Announcements
Constant Acceleration
Freely Falling Objects
Reading Assignment
Read sections 3.13.3 (Motion in
Announcements
Vectors and Scalars
Addition
Unit Vectors
Projectile Motion
Motion in Two or Three Dimensions
Sections 3.1 3.3
Motion in Two or Three Dimensions
Conclusions
Announcements
Vectors and Scalars
Addition
Unit Vectors
Reading Assignment
Read sect
Announcements
Projectile Motion
Circular Motion
Motion in Two or Three Dimensions
Sections 3.4 3.5
Motion in Two or Three Dimensions
Conclusions
Announcements
Projectile Motion
Reading Assignment
Read sections 4.14.3 (Newtons Laws of Motion)
Homework Assi