1. [12 st.]
A planorm is hanging from Two verTical cables.
The planorm is 3.0m long and has a mass of 30.0 kg. A box of mass 50.0 kg is siTTing on
The planorm, 2.0 m from iTs IefT end.
a) Draw a freebody diagram of The forces exerTed on planorm. [2 st.]
1.
[I5 pts.]
Given the vectors
2,j , c and B
below:
betermine the magnitude a d anqle [with respect to the xaxis] of the Resultant Vector
Where
I
=(! + 3  c + 2
Y

[XI
~ Hint:
4 First determine the values of the x and y components of each vector.
SKETC
QUIZ 2
SPRING 2008
NAME/SEAT _/_
x x0 v0t 1 / 2at 2 Or
v vo at
y y0 v0t 1 / 2at 2
v
v0 v
2
v 2f v 02 2a ( x xo ) Or
v 2f v02 2a ( y y o )
The magnitude of the acceleration due to gravity is g = 9.80m/s 2.
F
ma
F
x
max
F
y
ma y
g 9.80m / s 2
Ffriction
EQUATIONS FOR EXAM 1 SPRING 2008
adjacent side
hypotenuse
opposite side
tan
adjacent side
cos
sin
opposite side
hypotenuse
Vector components
Ax A cos
Opposite
Ay A sin
Side
Hypotenuse
A
Ay
A Ax2 Ay2
Adjacent side Ax
total displacement
r
t
total time e
1. [I7pts.]
A? a certain distance (R) from the earth's center to a pain? outside The earth, the
gravitational accelermion clue 1'0 the earth is onefih cfw_1/5 The value if has at its surface.
(1. Draw a picture describing the problem and label your harms.
1.
[14 pts.]
A.
The moon orbits the earth in an approximately circular orbit of radius r = 3.8x10 8 m.
It takes about 27 days to complete one orbit.
G1teO.:
Calculate the mass of the earth using the above data? [7 pts]
8
f'elf 3.i?l<. 10 .,
T;t c2'7~ :
PHYSICS 110 EXAMINATION II
APRIL 27, 2012
NAME
_ SIGNATURE
._._._
SEAT ASSIGNMENT
_._._,_
SHOW AL'LYOUR WORK CLEARLY AND NEATLY!
GOOD LUCK 1. [18 pTS.]
A soTelliTe is puT inTo a circular orbiT around The planeT Mars. The heighT of The soTeHiTe above Th
2." E25 st.]
Consider The rollercoasTer car in The diagram below:
A. If The Track 15 frictionless, whaT would be The velociTy of The car aT a heighT of 7. 50 m above The
ground [PoinT B]. Assume The roller coasTer car has an iniTiaI velocITy of 9. OOm/s
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Aim: ?
Homework
Read pg. 202205
Do Questions on Moodle
Do Now
An argon ion laser emits light at 489nm.
What is the frequency of this radiation? Is this
emission on the visible spectrum? If yes, what
color is it?
Blackbody Radiation
The pivotal research
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Aim: ?
Homework
Read pg. 163168
Do Questions on Moodle
Do Now
A reaction in a closed cylinder absorbed
400 J of energy from its surroundings. If 1800 J of
energy was required to push the cylinder up, what
is the change in the systems internal energy?
The
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Aim: ?
Homework
Read pg. 169174
Do Questions on Moodle
Do Now
Given the following thermochemical equation:
2KClO3(s) 2KCl(s) + 3O2(g) + 89.4 kJ
If 55kJ of energy was released how much potassium
chlorate was initially present in the reaction?
Calculating
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Aim: ?
Homework
Read pg. 158162
Do Questions on Moodle
Do Now
What are the two modes by which energy
can be transferred to and from a system?
Total Energy Is Conserved
In the previous lesson, we learned about
systems and surroundings
We also learned th
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Aim: ?
Homework
Read pg. 199202
Do Questions on Moodle
Do Now
Name the scientist given credit for the
discovery of the
a) proton
b) electron
c) neutron
Our Journey
In the previous lesson, we began our journey
into understanding the structure of the atom
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
1 A car moves along a straight horizontal path for 20 seconds, as follows : The first 10 seconds at
constant velocity v, and then it goes from v to 2v for the next 10 seconds. If the total distance travelled
during these 20 seconds is 200m , what is the v
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
1. The driver of a car wants to slow his car from its current velocity v=30 m/s, to under the
limit speed of 15 m/s and within a distance of 100m. The car is travelling on a horizontal
road.
What is the minimum acceleration needed?
What is the required co
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
1 A car moves along a straight horizontal path for 20 seconds, as follows : The first 10 seconds at
constant velocity v, and then it goes from v to 2v for the next 10 seconds. If the total distance travelled
during these 20 seconds is 200m , what is the v
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Homework 2
(35) V is a vector 24.8 units in magnitude and points at an angle of 23.4
above the negative xaxis. (a) Sketch this vector. (b) Calculate Vx and Vy .
(c) Use Vx and Vy to obtain (again) the magnitude and direction of V . [Note:
Part (c) is a
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Homework 3
(47) What average force is required to stop a 950kg car in 8.0 s if the car
is traveling at 95 km/h?
Solution:
First find the average acceleration
aavg =
0 95 km/hr
v v0
=
= 3.3 m/s2
t
8s
The average force on the car is found from Newtons sec
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Homework 4
(57) A car drives straight down toward the bottom of a valley and up the
other side on a road whose bottom has a radius of curvature of 115 m. At
the very bottom, the normal force on the driver is twice his weight. At what
speed was the car tr
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Homework 5
(69) A box of mass 4.0 kg is accelerated from rest by a force across a floor
at a rate of 2.0 m/s 2 for 7.0 s. Find the net work done on the box.
Solution
Assume that the box starts from rest.
1
1
d = x x0 = v0 t + at2 = 0 + 2.0 7.02 = 49 m.
2
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Homework 7
(7  10) An object at rest is suddenly broken apart into two fragments by
an explosion. One fragment acquires twice the kinetic energy of the other.
What is the ratio of their masses?
Solution
Momentum will be conserved in one dimension in the
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Physics 110 Syllabus
Instructor Information
Prof. Yonatan Abranyos
Office: 1214 B Hunter North
Email: [email protected]
Office Hours: Monday 5:35pm  6:35pm.
Course Description
Class Meets: Hunter West Building Room 511
Lecture Time: Monday and Wed
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Y. Abranyos (LaTex)
Chapter 14 Heat
Heat As Energy Transfer
Internal Energy
Specific Heat
Calorimetry  Solving Problems
Latent Heat
Heat Transfer: Conduction
Heat Transfer: Convection
Heat Transfer: Radiation
1
Y. Abranyos (LaTex)
141 Heat As En
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Y. Abranyos (LaTex)
Chapter 15 The Laws of
Thermodynamics
The First Law of Thermodynamics
Thermodynamic Processes and the First Law
The Second Law of ThermodynamicsIntroduction
Entropy and the Second Law of Thermodynamics
1
Y. Abranyos (LaTex)
151 T
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Y. Abranyos (LaTex)
Chapter 4: Dynamics: Newtons Laws
of Motion
Force, Newtons First Law of Motion and Mass
Newtons Second Law of Motion
Newtons Third Law of Motion
Solving Problems with Newtons Laws: FreeBody Diagrams
Applications Involving Frictio
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Y. Abranyos (LaTex)
Chapter 5: Circular Motion;
Gravitation
Kinematics of Uniform Circular Motion
Dynamics of Uniform Circular Motion
Highway Curves, Banked and Unbanked
Newtons Law of Universal Gravitation
Gravity Near the Earths Surface
Satellites
General Physics: Introductory Course in Mechanics, Heat, and Sound (Uses College Algebra)
PHYSICS 110

Fall 2013
Y. Abranyos (LaTex)
Chapter 7 Linear Momentum
Momentum and Its Relation to Force
Conservation of Momentum
Collisions and Impulse
Conservation of Energy and Momentum in Collisions
Elastic Collisions in One Dimension
Inelastic Collisions
Center of Ma