Indira Anderson
Week 2 Text Book Exercise
Ch. 6: Exercise 8
A person can survive a feet-first impact at a speed of about
12 m/s (27 mi/h) on concrete; 15 m/s (34 mi/h) on soil;
and 34 m/s (76 mi/h) on water. Why the different values for different surfaces
Indira Anderson
PHY101 week 1
Ch. 2: Exercise 7 A space probe may be carried by a rocket into outer space. What keeps the probe
moving after the rocket no longer pushes it?
The rate the probe moves in space is due to the pushing force of the rocket and th
Scientific Investigation Summary
Indira Abigail Jagdeo Anderson
PHY101/Fundamentals of Physics
June 5, 2017
Professor Armond Badkerhanian
Scientific Investigation Summary
Science in general has such a vast amount of information, branches and divisions. To
Indira Anderson
PHY101
Week 4 textbook exercise
Chapter 19 Exercise 12. You use a vice to firmly clamp one end of a hacksaw blade. You twang
the free end and it vibrates. If you do the same, but first place a wad of clay on the free end, how,
if at all, w
Indira Anderson
PSY 101
Ch. 11: Exercise 10
Your friend says that what makes one element distinct from another is the number of
electrons about the atomic nucleus. Do you agree wholeheartedly, partially, or not at all? Explain.
I would agree partially, be
Indira Anderson
Week 2 Text Book Exercise
Ch. 6: Exercise 8
A person can survive a feet-first impact at a speed of about
12 m/s (27 mi/h) on concrete; 15 m/s (34 mi/h) on soil;
and 34 m/s (76 mi/h) on water. Why the different values for different surfaces
Physics 101
Week 5
Indira Anderson
Chapter 22
Exercise 8 When combing your hair, you scuff electrons from your
hair onto the comb. Is your hair then positively or negatively
charged? How about the comb?
The hair becomes positively charged and the comb bec
Problem 1:
(a) The allowable values of the electron energy levels of an electron in the finite potential well
(depth = 20eV and a width of 5 ) is
nx2 n 2y hc 2
E 2 2
Lx Ly 8mc 2
n2 n2
1240 eVnm
x2 2y
20 5 8 511000 eV 0.2 nm 2
2
nx2 n y2
9.4 eV
W. Gerald Brown
PHSC 1015-BW1
Problem Set 3-A
1. What patterns can you determine from the graphs?
The initial graphs show speed that is constant for a period and increases. These are all curved, and
the slope gets steeper to indicate an increase in veloci
W. Gerald Brown
PHSC 1015-BW-1
Problem Set 5 (2-D Motion)
1. The initial height and initial speed dictates the final horizontal and vertical positions. Changing
the initial height only causes the projectile to travel further on the x-axis.
2. There is a v
Printed Name
Problem Set #1- Units of Measurement
This assignment supports the following Course Goals, Course Learning
Outcomes, and Unit Objectives:
Goal 1: To give you a reasonable knowledge of the basic concepts of physical science,
including mechanics
W. Gerald Brown
PHSC 1015 BW1
PS9: Momentum and Impulse
1. Momentum is the motion quantity of a moving body. The faster an object moves, the harder it is
to stop it. An example would be cars braking. At 20mph, little effort and distance would be
needed to
W. Gerald Brown
PHSC 1015 BW1
PS8: Gravitation
1. The formula for the mass of earth is F=GmM/r2=ma. F=gravitational force, G=gravitational
constant, M=mass of the earth, r = earths radius, and m = mass of some other object near
earths surface.
a. GM/r2=a-
W. Gerald Brown
PHSC 1015 BW1
PS6: Force
1. There is the gravitational force and the force of pushing up from the
floor. They are balanced because the freezer is stationary. There is no
net force acting on the freezer because it is still. The net force is
W. Gerald Brown
PHSC 1015-BW
Problem Set 4
June 25, 2017
1. The total distance walked is 12 meters. The displacement, like the Indy 500, is 0.
4m + 2m + 4m + 2m = 12m
2. The average speed of the physics teacher was 0.5m/min.
12m/24min=0.5 m/min
The averag
W. Gerald Brown
PHSC 1015 BW1
Problem Set 3B
1. The GBS cross-country team runs 10 miles if the round trip is 10 miles. However, if they ran 10
miles before heading back to finish as the school, they ran 20 miles which would be 10 until the
turn-around po
W. Gerald Brown
PHSC 1015 BW1
PS7: Force and Acceleration
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Force = Mass X Acceleration, so Force equals 1000kg X 3m/s 2= 3000N.
Acceleration = Force / Mass, so Acceleration equals 250N/70kg =3.57m/s 2
1250N/9.8m/s2=127.55kg o
Diffraction and
Interference
Diffraction
The bending of waves around obstacles that are in
their path.
Sound waves
Light waves
Interference
The process in which two or more light,
sound or electromagnetic waves of the
same frequency combine to reinforce
In terms of impulse and momentum, why do air bags in cars reduce the
chances of injury in accidents?
When an airbag deploys it increase the stopping time of a person slowing them
down, which will decrease the amount force that a persons body would normall
If you dip your finger repeatedly into a puddle of water, it creates waves.
What happens to the wavelength if you dip your finger more frequently?
Dipping your finger more frequently creates a shorter distance of
wavelengths from one another a higher freq
Your friend says that inertia is a force that keeps things in their place,
either at rest or in motion. Do you agree?
Why or why not?
No, inertia can be in motion and something not in motion. Inertia is a
property of matter. An object at rest will stay at
Part a:
For the differential equation
u 0 0, u 0 0
d 2u
1 8x2
2
dx
in the domain [0,1] with boundary conditions
. By applying the four methods, we have
Trial functions
1 x x
1 x 1
2 x x 2 1 x 2 x
Coefficient matrix is same as part(b), force vector:
F
1
Physics 101
DIY : Make and Use a Barometer to Measure Air Pressure
DIY Make a Barometer
Date
April 19,
2017
April 19,
2017
April 20,
2017
April 20,
2017
Data Table
Weather
Time
Conditions
Air
Pressure
Mostly sunny
and very warm
A thunderstorm
3:15 pm
in s
Problem 1:
(i) With 1 of 3 subjects exhibit toxicity at the reported dose,
1
n 3,
3
X ~ Binomial n,
, the asymptotic normal 95% confidence interval for parameter
1
1.96
l , x
For binomial distribution, the log likelihood function is
l ; x x log n x l
function [ profit, hist ] = monopolymodel( input_args )
% optimal investment decision model for a monopoly
% -global
global
global
global
global
global
global
global
global
global
global
global
common global variables -kbar;
%maximum capacity
tbar;
%maxim
PHYSICS C: MECHANICS
SECTION II
Time 45 minutes
3 Questions
Directions: Answer all three questions. The suggested time is about 15 minutes for answering each of the questions,
which are worth 15 points each. The parts within a question may not have equal
15
Work & KE WebAssign
1. (a) From Table 2-1, we have v 2 v02 2ax . Thus,
v v02 2ax
2.4 10
7
m/s 2 3.6 1015 m/s 2 0.035 m 2.9 107 m/s.
2
(b) The initial kinetic energy is
Ki
2
1 2 1
mv0 1.67 10 27 kg 2.4 107 m/s 4.8 10 13 J.
2
2
The final kinetic energ
Answers:
35. Given a one-dimensional force
under the curve:
xf
W F ( x) dx
xi
.
F ( x)
, the work done is simply equal to the area
(a) The plot of F(x) is shown above. Here we take x0 to be positive. The work is
negative as the object moves from
and posit