Third Midterm Results
Problem 13
KEi + GPEi = KE f + GPE f
2
10R
2R
2
M
1
M
2
0G
= 2 Mv G
10 R
2
2R
1 1 GM
2
=v
2 10 R
2 GM
v=
5 R
Problem 16
v
F
2
TME = GPE + KE
2
M
1
2
+ 2 Mv
TME = G
2R
2
2
2
GM
GM
TME =
+
2R
4R
M
F =G
2
(2 R )
2
v
F
M
=a=
=G 2
R
Numerical Modeling Assignment 5 Due in class Thursday Oct 20
Adding a transient external force
In this assignment you will simulate three golf balls in flight in the presence of air drag, where
two of the golf balls have tiny (negligible-mass) but powerfu
Physics 140 Prof. Keith Riles
Numerical Modeling Assignment 2
Daniel Chen
Set 1:
Page | 1
Physics 140 Prof. Keith Riles
Numerical Modeling Assignment 2
Daniel Chen
Set 2:
Page | 2
Physics 140 Prof. Keith Riles
Numerical Modeling Assignment 2
Daniel Chen
S
Physics 140 - Discussion 14 - Solutions
10.37. (a) IDENTIFY: Use L = mvr sin (Eq. (10.25):
SET UP: Consider Figure 10.37.
L = mvrsin =
( 2.00 kg)(12.0 m/s)(8.00 m)sin143.1
EXECUTE:
L = 115 kg m 2 /s
Figure 10.37
r
r
r
To find the direction of L apply the
Prof. Keith Riles Physics 140
Numerical Modeling Assignment #8
Daniel Chen
Uniqname: dalchen
Set 1:
Set 2:
Set 3:
Page | 1
Prof. Keith Riles Physics 140
Numerical Modeling Assignment #8
Daniel Chen
Uniqname: dalchen
Extra Credit Set 4: (Set 1 with COR=0.5
Lecture 17/Discussion 17:
Angular Momentum
Chapter 10, Sections 10.5-10.6
In previous two lectures we have seen that every rotational quantity had an analog of
some quantity in the translational motion of a particle. So it is for a rotational equivalent
o
Prof. Keith Riles Physics 140
Numerical Modeling Assignment #7
Daniel Chen
Uniqname: dalchen
Elastic Collision (set=1 in code, COR=1):
Inelastic Collision (set=3 in code, COR=0.30):
Page | 1
Prof. Keith Riles Physics 140
Numerical Modeling Assignment #7
D
Physics 140, Fall 2014
First Midterm Exam
October 2, 2014
Form 1
Your name: _
Last
First
Your UMID number: _
Fill in your name, student ID number, and form number on the scantron and in the spaces above.
All cell phones, text massaging devices, computers,
Physics 140, Winter 2012
First Midterm Exam
Physics Department, University of Michigan
February 2, 2012
FORM 1
Please print your name: _
Your INSTRUCTOR:_
INSTRUCTIONS AND INFORMATION
1. Fill in YOUR NAME, UM ID NUMBER, and the EXAM FORM NUMBER on the sca
Physics 140, Fall 2012
First Midterm Exam
Physics Department, University of Michigan
October 4, 2012
FORM 1
Please print your name: _
Your INSTRUCTOR:_
INSTRUCTIONS AND INFORMATION
1. Fill in YOUR NAME, UM ID NUMBER, and the EXAM FORM NUMBER on the scantr
Physics 140 Winter 2004 Midterm 1 1. (P) Three boxes of salamis with masses m1, m2 and m3 are being pulled to the right across a horizontal, frictionless surface using the light connecting strings shown. Which of the following combinations of masses
_
Physics 140 Fall 2009 Midterm 1
Physics Department, University of Michigan
October 8, 2009
FORM 1
Please print your NAME:_
(Last)
(First)
Your DISCUSSION SECTION or INSTRUCTOR:
INSTRUCTIONS AND INFORMATION:
1. Fill in the information above.
2. Fill in Y
Physics 140, Winter 2010
Third Midterm Exam: April 8, 2010
Physics Department, University of Michigan
FORM 1
Please print your name: _
Your DISCUSSION SECTION or INSTRUCTOR:_
INSTRUCTIONS AND INFORMATION
1.
Fill in YOUR NAME, SECTION NUMBER and EXAM FORM
Physics 140 Fall 2002 Midterm 2 1. You throw a marble with fixed initial speed of 10 m/s from the top of a bridge into the river below. Air drag on the marble can be ignored. To maximize the marble's kinetic energy on impact with the water, in which
College Physics
OpenStax College
Rice University
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Houston, Texas 77005
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Discussion # 20 Fluid Dynamics
Q12.17: At a certain depth in an incompressible liquid, the absolute pressure is p.
At twice this depth, will the absolute pressure be equal to 2p, greater than
2p, or less than 2p?
Q12.29: When a smooth-flowing stream of wa
Discussion # 22 Spherical Mass Distribution
Q13.14: Discuss whether this statement is correct: In the absence of air
resistance, the trajectory of a projectile thrown near the earths surface is an
ellipse, not a parabola.
v < vorb
1.25RE
v = vorb
vorb < v
Name Date
s. /
Final Exmng 2007
Principles of Physics I
Show all work!
1) (3 points) For the two vectors shown below, sketch their sum.
m
2) (5 points) Two metal balls are of equal size, but one weighs twice as much as the
other. The halls are dropped fro
Mass of a Comet
Mass of a Comet
2GM C
vesc =
RC
2
C esc
MC = R v
2
/ 2G
4500m(1m / s)
13
MC =
=
3.4
10
kg
11
2
2(6.67 10 N(m / kg) )
for comparison :
15
M (mt. everest) 3.4 10 kg
100M C
Announcements
MP-10 due Tuesday, 19 Nov @ 11:59pm
Exam III will be
Gravitational Review
Any two masses mA and mB experience
gravitational force:
F =G
Corresponding potential energy:
m A mB
AB
2
rAB
m A mB
GPE = G
rAB
Here rAB is the distance between two point-like
objects or between centers of two spheres
G is a univ
Practice Problem for the Day
A diving board is 3m, 280N, and is supported at a pivot
point 1m from one end. A diver weighing 500 N stands at
other end of the board and prepares to dive. Determine
the force acting on the board by the pivot point.
1m
2m
A
Pool Problem
A swimming pool is 5.0 m long, 4.0 m wide, and 3.0 m
deep. Compute the force exerted on the bottom of the
pool by the water in the pool:
1)
2)
3)
4)
5)
60,000 N
118,000 N
147,000 N
196,000 N
588,000 N
Pool Problem
3
2
pressure P = gh = (
Insect Problem
y
2
2 A
v p = = Av
sin[ ] v p max = v
t
Announcements
MP-12 due Monday, 9 Dec @ 11:59pm
Course evaluations are now open;
please fill them out (before 12 Dec).
Final Exam, Friday 13 Dec @ 7:20pm
Racquetball Striking a Wall
Mechanical
Wave
Rolling Energy
A.
B.
C.
D.
E.
2.65 m/s
4.54 m/s
5.47 m/s
5.72 m/s
7.00 m/s
Rolling Energy
A.
B.
C.
D.
E.
2.65 m/s
4.54 m/s
5.47 m/s
5.72 m/s
7.00 m/s
Rolling Energy
Announcements
Practice Exams are posted on CTools
Special guest lecturer tomorrow: Yuri!
Physics 140, Winter 2017
First Midterm Exam
February 2, 2017
Form 1-
Your name: /WEL N/ C W4 )4 M / /< 5
_ Last First
Your UMlD number: 504 U77 O/U 6
Fill in your name, student ID number, and form number on the scantron and in the spaces above.
All cell p
Physics 140, Fall 2016
First Midterm Exam
October 6, 2016
Form 1
Ywmmm: A4EZN/C#K ddKe
Iaast - first
Your UMID number: 504 U WCA/ 3
Fill in your name, student ID number, and form number on the scantron and in the spaces above.
All cell phones, text messag
Physics 140, Winter 2016
First Midterm Exam
February 4, 2016
Form 1
Your name:
Last
Your UMID number:
First
S_U/I OAJ
S
Fill in your name, student ID number, and form number on the scantron and in the spaces above.
All cell phones, text messaging devices,
_
Physics
140, Fall 2015
First Midterm Exam
October 8, 2015
Form
Your name:
1
M/KE
C/-/K
First
Last
L4T/OAJS
Your UMID number:
Fill in your name, student ID number, and form number on the scantron and in the spaces above.
All cell phones, text messaging d
Physics 140 Study
Guide
Sinmisola Kareem
Just a recap of a few topics and what you need to know about how to pass this crappy exam.
Im sure youll do well. ( Word of encouragement from rocket scientist Dr.Fuzzy)
Vectors
1. There are two types of quantities