PHYS 2305
Foundations of Physics
Prof. Chenggang Tao
211 Robeson Hall
Office hours: Tuesday 2:00-3:30 pm
Email: [email protected] (business hours)
Syllabus is on the course website
Torque
When a force F acts at a point having a position vector r
with respect t
PHYS 2305
Foundations of Physics
Prof. Chenggang Tao
211 Robeson Hall
Office hours: Tuesday 2:00-3:30 pm
Email: [email protected] (business hours)
Syllabus is on the course website
Announcements and reminders
1) 3rd midterm: 5:30 - 7:30 pm on Friday, Apr 17, i
PHYS 2305
Foundations of Physics
Prof. Chenggang Tao
211 Robeson Hall
Office hours: Tuesday 2:00-3:30 pm
Email: [email protected] (business hours)
Syllabus is on the course website
Introduction
! Does molten iron at 1500C
contain heat?
! The terms temperature
PHYS 2305
Foundations of Physics
Prof. Chenggang Tao
211 Robeson Hall
Office hours: Tuesday 2:00-3:30 pm
Email: [email protected] (business hours)
Syllabus is on the course website
A particle of mass 4.0 kg, initially moving along axis X with a velocity of 2.0
PHYS 2305
Foundations of Physics
Prof. Chenggang Tao
211 Robeson Hall
Office hours: Tuesday 2:00-3:30 pm
Email: [email protected] (business hours)
Syllabus is on the course website
The work-energy theorem
v2 = v1 + at
1 2
x = v1t + at
2
v22 v12
x=
2a
2ax = v22
PHYS 2305
Foundations of Physics
Prof. Chenggang Tao
211 Robeson Hall
Office hours: Tuesday 2:00-3:30 pm
Email: [email protected] (business hours)
Syllabus is on the course website
Gravitational potential energy
dU(r)
=F
dr
r
r
dU(r) = F dr
F = G
Mm
, and U()
PHYS 2305
Foundations of Physics
Prof. Chenggang Tao
211 Robeson Hall
Office hours: Tuesday 2:00-3:30 pm
Email: [email protected] (business hours)
Syllabus is on the course website
Angular acceleration
! The average angular
acceleration is aav-z =
z/t.
! The i
PHYS 2305
Foundations of Physics
Prof. Chenggang Tao
211 Robeson Hall
Office Hours: Tuesday 2:00-3:30 pm
Email: [email protected] (business hours)
Syllabus is on the course website
Forces
Forces
"
Forces are vectors - they have magnitude and direction.
"
Super
PHYS 2305
Foundations of Physics
Prof. Chenggang Tao
211 Robeson Hall
Office hours: Tuesday 2:00-3:30 pm
Email: [email protected] (business hours)
Syllabus is on the course website
Force and potential energy in one dimension
" In one dimension, a conservative
Physics 2205 Fall 2015
Test 1: Form A
Name:
Date:
BEFORE YOU BEGIN:
1. Fill in CORRECTLY your ID number AND THE FORM LETTER on the scantron.
2. Write the course number (2205) and your section on the scantron.
3. Write down your name on the quiz and the sc
An Introduction to Torque and Rotational Momentum
Introduction to Torque
Forces have the ability to rotate objects. The point at which you exert the force determines how
effective that force is in rotating the object. For instance, if you push on a seesaw
Barbara Oliver
Professor Rheka Gupta
27243
Group 48
Thesis Statement:
Humans are expected to be on Mars by the year 2030. If humans cannot provide a natural source
for food, then the Mars mission is a definitive failure. To prepare for the mission, it is
Chapter 5 Forces and Motion
| = 2 + 2
= =
Incline Plane with No Friction(Tilt the axis so the X axis is parallel to the incline)
= sin =
= cos = 0
Incline Plane with Friction
= sin cos =
= cos = 0
Incline Plane with Tension and friction
= sin cos
Energy and Work Done by a Constant Force
General Equation
= cos = =
+ = +
Total Mechanical Energy = +
Work is a scalar, so therefore there are no directions
Work is a dot product. Its the Force dot distance.
Work done by a spring
=
Where k is a con
1/25/17 Lecture Fundamental Physics Concepts
Describing motion
o Physics is about trying to understand the motions of objects through
space and time
o Speed
The rate of change of position
How far you go in a certain amount of time
Units: miles per hour
AKINWONMI ABIMBOLA OLUMIDE
19, OLORUNKEMI STREET, BARIGA, LAGOS.
[email protected]
08067085061
May 14th, 2017
JOB APPLICATION LETTER
Herewith I send an application letter and curriculum vitae in response to your
advertisement on the myjobmag we
Charge Carriers
The outer electrons of
metal atoms are only
weakly bound to the
nuclei.
In a metal, the outer
electrons become
detached from their
parent nuclei to form a
fluid-like sea of electrons
that can move through the
solid.
Electrons are the ch
Waves
Waves
1. Mechanical Waves ( waves that need a medium for its
propagation)
example: Sound waves, waves on a string, waves in water
2. Electromagnetic waves ( waves that do not need a medium
for its propagation)
example: Light, Microwaves, Radio Waves
Practice Questions for Final Exam on the New Material
(New Material Means Chapters 32, 33, 34, 23.2 and 23.3)
For Old Material Please Use Your 3 Midterms as Practice Tests
(Old Material Means Chapters 14, 20, 21, 25, 26, 27, 28, 29, 30 and 31)
1. The magn
Practice Test 3
Exam Date: April 14, 5:30pm
Exam 3 covers chapters: 29, 30 and 31
HW: 8, 9 and 10
1. In the figure shown what is the potential difference, Vab if the charge on the 15 microFarad capacitor is 4.0 x 10-6 C?
A.
B.
C.
D.
E.
9.50 V
1.72 V
10.3
Dynamics of SHM
N-II
max = Fx = kx
Hooke
d2x
k
=
x
2
dt
m
differential equation
region of validity
Hookes law
equations of motion
Differential equations
Express relationships
Solution real behavior
Guessing is a valid way to solve a
diff. eqn.
frequenc
Recitation Week 8
1. Two concentric spheres are shown in the figure. The inner sphere is a solid nonconductor
and carries a charge of +5.00 C uniformly distributed over its outer surface. The outer
sphere is a conducting shell that carries a net charge of
PHYS2305, Spring 2017
Midterm Exam 1A
PHYS 2305 Midterm Exam 1
Test Version A
February 10, 2017
SOLUTIONS
(1)
A speed of 4.50 km/h
ft/min.
(A) 0.246
(B) 82.3
(C) 165
(D) 246
(E) 886
(2)
X
~ are shown in Figure 1. If A = 16.0
Vectors A~ and B
units and B
PHYS2305, Spring 2017
Midterm Exam 2A
PHYS 2305 Midterm Exam 2
Test Version A
March 17, 2017
SOLUTIONS
Figure 1: Refer to Question #1.
(1) The Earth, which has a radius of 6000 km, completes one rotation about its axis every
day. A typical analog clock, s
Introduction to Astronomy
8/25/16
*Check file on Canvas for pdf (terms)
Quasar quasy stellar object; it looks like a star but it is not a star
Planet an object that clears its own orbit of other objects
-Labels
*memorization
*Understanding interlocking to
VECTORS, DISPLACMENT AND
VELOCITY
January 19th, 2017
Instructor: Dr. Travis Merritt
Vector Mathematics
Vector Mathematics
1D Kinematics - Introduction
Instantaneous Velocity
Velocity to Position
SCALAR VS VECTOR QUANTITIES
1
Scalar quantities have only ma
WORK
March 28th, 2017
Instructor: Dr. Travis Merritt
Review
Review
Work (Constant Force)
Dot Product
A golf ball is fired at a bowling ball initially at rest and
sticks to it. After the collision, compare the momentum/kinetic energy of the golf ball to th