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Principles of Mechanics 14
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I need an explanation for this question to help me study.
a) Calculate the angular velocity and angular acceleration of a 2kg mass rotating in a horizontal circle of 2m radius if one revolution takes 4 seconds?
b)A object rotates in a 3m diameter circle with angular velocity of 3rad/s. Calculate the period and the frequency of rotation for the object.
c) Calculate the centripetal force required to rotate a 3 kg mass in a 6m diameter circle at 60 revolutions per minute?

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unit 2 discussion
unit 2 discussion
Using
one of the Discussion Board data sets
a. SPSS and Data Summary: Choose a dataset from Doc Sharing. Then, from that dataset,
select any two quantitative variables. What is the name of your dataset and the
two quantitative variables you will be analyzing? Use SPSS to compute summary
(descriptive) statistics, including measures of central tendency mean, median,
mode and numerical measures variance and standard deviation for each of your
variables. Paste the results here. If your results will not paste, simply
attach them to your post using Add/Remove. Chmovie.savMhealth.sav
b. Central Tendency:
Which measure of central tendency do you think does the best job of describing
each of your variables? Explain your answer and consider issues like outliers,
skewness, and the overall information you are trying to gain. Which measure of
central tendency does the worst job in describing your data? Explain your
answer.
c. Variation: What is the variance and standard deviation for
each of your two variables? Which variable has the highest variation? What does
that tell you about that variable?
d. Pulling it all together: When is “mode” the better measure?
Think about what you have learned and how you can relate it to your profession,
your daily life, or a realistic hypothetical situation. Then, create (invent) a
realistic small dataset that can be best described by mode and poorly described
by mean. List the dataset. What does the mode tell us about the data? Why is
the mean a poor measure for this data?

HCA 421
HCA 421
Post 1: Strategic External Assessment: Industry and CompetitionDescribe Michael Porter’s Five Forces Model. What does he attempt to explain? How might the forces function and affect industry profits? Post 2: Market SegmentsIf the movement toward “consumer-driven health care” continues to advance, speculate on how a health care organization may want to improve the way that it assesses and interacts with its market and customers, including providing health services and programs to meet the needs of a diverse population. Reflect on how this development may, or may not, affect those who are already under-served in a market.

Paper 1
Paper 1
Analyze the case study and review your readings. Respond to the following:Identify and analyze Aaliyah's risk and protective factors for drug use. Describe at least two factors for each.Discuss at least one thing not mentioned in the case study that could be an additional risk factor or protective factor for Aaliyah.Explain what these risk and protective factors imply for future substance use.Write a 2-3-page paper in Word format. Apply APA standards to citation of sourcesCase StudyAaliyah is a 25-year-old, single, Caucasian woman, who lives in an apartment with a friend. She moved out of her parents' house at 18, after completing high school, to remove herself from her father's alcohol use. Aaliyah smokes cigarettes and drinks alcohol occasionally. She is dissatisfied with her current job. She works full time as an administrative assistant at a contracting company, but she is ready for a career change. Aaliyah has decided to return to school to pursue a degree in criminal justice. She will be working and taking classes at the same time, fitting her school schedule around her work schedule. During her first session of school, she notices that she is having difficulty staying awake to complete her schoolwork at night after a full workday. She does not want her grades to fall, as her education is very important to her. However, she cannont afford to reduce her worki hours. Her roommate makes coffee at night to help her stay awake. Soon, Aaliyah is drinking three or more cups of coffee a night to help her stay awake to complete her schoolwork.

Summarize This Article in 200 Words
Summarize This Article in 200 Words
Sen. Robert C. Byrd: ‘On the brink of war’June 28, 2010 by Ken Ward Jr. Here is a speech that Sen. Robert C. Byrd delivered on the Senate floor on Feb. 12, 2003:Madam
President, to contemplate war is to think about the most horrible of
human experience. On this February day, as this Nation stands at the
brink of battle, every American on some level must be contemplating the
horrors of war.My wife says to me at
night: Do you think we ought to get some of those large bottles, the
large jugs, and fill them with water? She says: Go up to the attic and
see if we don’t have two or three there. I believe we have two or three
there.And so I went up to the attic
last evening and came back to report to her that, no, we didn’t have any
large jugs of water, but we had some small ones, perhaps some gallon
jugs filled with water. And she talked about buying up a few things,
groceries and canned goods to put away.I
would suspect that kind of conversation is going on in many towns
across this great, broad land of ours. And yet this Chamber is for the
most part ominously, dreadfully silent. You can hear a pin drop. Listen.
You can hear a pin drop. There is no debate. There is no discussion.
There is no attempt to lay out for the Nation the pros and cons of this
particular war. There is nothing.What
would Gunning Bedford of Delaware think about it? What would John
Dickinson of Delaware think about it? What would George Read think about
it? What would they say?We stand
passively mute in the Senate today, paralyzed by our own uncertainty,
seemingly stunned by the sheer turmoil of events. Only on the editorial
pages of some of our newspapers is there much substantive discussion
concerning the prudence or the imprudence of engaging in this particular
war. I can imagine hearing the walls of this Chamber ring just before
the great war between the States, a war that tore this Nation asunder
and out of which the great State of West Virginia was born.But
today we hear nothing, almost nothing, by way of debate. This is no
small conflagration that we contemplate. It is not going to be a video
game. It may last a day or 6 days. God created Earth, and man, the
stars, the planets, and the Moon in 6 days. This war may last 6 days. It
may last 6 weeks. It could last longer. This is no small conflagration
that we contemplate. This is no simple attempt to defang a villain. No,
this coming battle, if it materializes, represents a turning point in
U.S. foreign policy and possibly a turning point in the recent history
of the world.The
flag over the U.S. Capitol flies at half staff in honor of the passing
of West Virginia Democratic Senator Robert C. Byrd in Washington Monday,
June 28, 2010. (AP Photo/Alex Brandon)This
Nation is about to embark upon the first test of a revolutionary
doctrine applied in an extraordinary way, at an unfortunate time–the
doctrine of preemption, no small matter–the idea that the United States
or any other nation can legitimately attack a nation that is not
imminently threatening but which may be threatening in the future.The
idea that the United States may attack a sovereign government because
of a dislike for a particular regime is a radical, new twist on the
traditional idea of self-defense. It appears to be in contravention of
international law and the U.N. Charter. And it is being tested at a time
of worldwide terrorism, making many countries around the globe wonder
if they will soon be on our hit list, or some other nation’s hit list.High-level
administration figures recently refused to take nuclear weapons off the
table when discussing a possible attack on Iraq. What could be more
destabilizing? What could be more world shattering? What could be more
future shattering? What could be more unwise than this kind of
uncertainty, particularly in a world where globalism has tied the vital
economic and security interests of so many nations so closely together?There
are huge cracks emerging in our time-honored alliances. One wonders
what is going to happen, and about what is happening to the United
Nations. One should pause to reflect on what is happening there at the
United Nations, formed 54 years ago. And we say: If you are not with us,
you are against us. That is a pretty hard rule to lay down to the
United Nations. If you are not with us, you are against us. If you don’t
see it our way, take the highway. We say to Germany and we say to
France–both of whom have been around longer than we–if you don’t see it
our way, we will just brush you to the side.Do
we fail to think about a possible moment down the road, a bit further
on, when we may wish to have Germany and France working with us and
thinking with us, standing with us, because there is a larger specter,
at least in my mind, looming behind the specter of Saddam Hussein and
Iraq. There looms a larger specter, that of North Korea, which has one
or two nuclear weapons now, and others within reach within a few weeks.
So there are huge cracks, I say, emerging in our time-honored alliances,
and U.S. intentions are suddenly subject to damaging worldwide
speculation.Anti-Americanism based on
mistrust, misinformation, suspicion, and alarming rhetoric from U.S.
leaders is fracturing the once solid alliance against global terrorism
which existed after September 11, 2001.Here
at home, people are warned of imminent terrorist attacks, with little
guidance as to when or where such attacks might occur. Family members
are being called to active duty, with no idea of the duration of their
stay away from their hearthside, away from their homes, away from their
loved ones, with no idea of the duration of their stay or what horrors
they may have to face, perhaps in the near future. Communities are being
left with less than adequate police and fire protection, while we are
being told that a terrorist attack may be imminent. What about those
communities like little Sophia, WV?Did
the people out there know it? Some of us attempted to tell the American
people about these efforts, but the press has not picked up on it very
well. Communities are being left with less than adequate police and fire
protection. Other essential services are also shortstaffed. The mood of
the Nation is grim, is the only way I know how to put it. The economy
is stumbling. Economic growth is worse than it has been in 50 years.
Fuel prices are rising and may soon spike higher.This
administration, now in power for a little over 2 years, must be judged
on its record. I believe that record is dismal. In that scant 2 years,
this administration has squandered a large projected surplus of some
$5.6 trillion. How much is that? That is $5,600 for every minute since
Jesus Christ was born.Let me say that
again. In that scant 2 years–I am talking about the last 2 years–of this
administration’s record, this administration has squandered a large
projected surplus of some $5.6 trillion over the next decade and taken
us to projected deficits as far as the human eye can see. This
administration’s domestic policy has put many of our States, including
my own, in a direfinancial
condition, underfunding scores of essential programs for the people,
the people out there who are watching through those electronic lenses.This
administration has fostered policies that have slowed economic growth.
This administration has ignored urgent matters such as the crisis in
health care for our elderly. This administration has been slow to
provide adequate funding for homeland security. The distinguished
Senator from Illinois, Mr. Durbin, and I have been talking about that.This
administration has been reluctant to better protect our long and porous
borders to the north and to the south, and to the east and to the west,
where the great oceans form the borders.In
foreign policy, this administration has failed to find Osama bin Laden.
In fact, yesterday we heard from him again marshaling his forces and
urging them to kill, kill, kill.This
administration has split traditional alliances, possibly crippling for
all time international order, crippling entities such as the United
Nations and NATO. This administration has called into question the
traditional worldwide perception of the United States as being a
well-intentioned peacemaking, peace loving, peacekeeping nation.This
administration has turned the patient art of diplomacy on its head. It
has turned the patient art of diplomacy into threats, labeling, and name
calling of the sort that reflects quite poorly on the intelligence and
sensitivity of our leadersand which
will have consequences for years to come, calling heads of state
pygmies, labeling whole countries as evil–as though we are not evil, as
though there is no country that is not evil–denigrating powerful
European allies as irrelevant. These types of crude insensitivities can
do our great Nation no good.We may
have massive military might, and we have, but remember we have had
massive military might before. How many millions of men marched to the
drums of war only 60 years ago? Thirteen million American men under
arms, was it? Millions.While we may
have massive military might today, we cannot fight a global war on
terrorism alone. We need the cooperation and the friendship of our
time-honored allies, as well as the newer found friends whom we can
attract with our wealth. Our awesome military machine will do us little
good if we suffer another devastating attack on our homeland which
severely damages this economy.Our
military manpower is already stretched thin, and they are taking them
from our States every day. Yesterday, I talked to the Senate about the
vacancies, about the empty seats at the dinner tables in the homes of
many West Virginians, because of the National Guard and Reserve
departures every day from the State of West Virginia. Yes, there they
come. They are law enforcement officers. They are State troopers. They
are road builders. They are doctors. They are teachers. They are Sunday
school teachers. These are the men and women who keep the lights burning
when the snows fall and darkness comes. But on whom will we depend when
these men and women are gone to foreign lands to fight a war if a war
faces us here at home, a different kind of war.Our
awesome military machine will do us little good if we suffer another
devastating attack on our homeland which severely damages our economy.As
I say, our military forces are already being stretched thin and we will
need the augmenting support of those nations that can supply troop
strength, not just sign letters cheering us on.The
war in Afghanistan has cost us $37 billion so far. Yes, we bombed those
caves. We ran them into the holes, but they could not hide. We ran them
out of the holes, and we ran behind them to get them. But there is
evidence that terrorism may already be starting to regain its hold in
that region. We have not found Bin Laden, and unless we secure the peace
in Afghanistan, the dark dens of terrorism may yet again flourish in
that remote and devastated land.Pakistan,
as well, is at risk of destabilizing forces. This administration has
not finished the first war against terrorism, and yet it is eager to
embark on another conflict with perils much greater than those in
Afghanistan. Is our attention span that short? Have we not learned that
after winning the war, one must also secure the peace?Yet
we hear little, precious little, about the aftermath of war in Iraq. In
the absence of plans, speculation abroad is rife. Will we seize Iraq’s
oil fields, becoming an occupying power which controls the price and
supply of that nation’s oil for the foreseeable future? There are some
who think so.To whom do we propose to
hand the reins of power in Iraq after Saddam Hussein? Will our war
inflame the Muslim world, resulting in devastating attacks on Israel?
Will Israel retaliate with its own very potent nuclear arsenal? What are
we about to unleash here? The genie is getting out of the bottle. Can
it ever be put back? Will the Jordanian and Saudi Arabian Governments be
toppled by radicals, bolstered by Iran, which has much closer ties to
terrorism than Iraq? Could a disruption of the world’s oil supply lead
to a worldwide recession? Has our senselessly bellicose language and our
callous disregard for the interests and opinions of other nations
increased the global race to join the nuclear club and make
proliferation an even more lucrative practice for nations which need the
income?In only the space of 2 short
years, this reckless and arrogant administration has initiated policies
which may reap disastrous consequences for years.We
have heard it asked, Are you better off today than you were 4 years
ago? The question can be shortened: Are we better off than we were 2
years ago?One can understand the anger
and the shock of any President after the savage attacks of September
11. One can appreciate the frustration of having only a shadow to chase
and an amorphous, fleeting enemy on which it is nearly impossible to
exact retribution. But to turn one’s frustration and anger into the kind
of extremely destabilizing and dangerous foreign policy debacle that
the world is currently witnessing is inexcusable from any administration
charged with the awesome power and responsibility of guiding the
destiny of the greatest superpower on the planet.Frankly,
many of the pronouncements made by this administration are outrageous.
There is no other word. Yet this Chamber is hauntingly silent–silent.
What would John Langdon of New Hampshire say about that? What would
Nicholas Gilman of New Hampshire say about that? What would Rufus King
and Nathaniel Gorham of Massachusetts say? What would Alexander
Hamilton, who signed the Constitution, from the State of New York, say
about the silence in this Chamber? What would Dr. Samuel Johnson of
Connecticut say about the silence in this Chamber? What would William
Paterson or William Livingston or David Brearley or Jonathan Dayton of
New Jersey, the signers of the Constitution, have to say about the
silence in this Senate which they created? What would Benjamin Franklin,
Thomas Mifflin, James Wilson, Robert Morris, of Pennsylvania, have to
say? What would Thomas FitzSimons or Gouverneur Morris, who signed the
Constitution on behalf of the State of Pennsylvania, have to say about
the silence that rings and reverberates from these walls today, the
silence with respect to the war on which we are about to enter? What
would they have to say? What would their comments be? Gunning Bedford,
George Read of Delaware, Daniel Carroll, Dan of St. Thomas Jenifer of
Maryland. These and more.What would
these signers of the Constitution have to say about this Senate which
they created when they note the silence, that is deafening, that
emanates from that Chamber on the great subject, the great issue of war
and peace? Nothing. Nothing is being said except by a few souls.Yet
this Chamber is hauntingly silent–hauntingly silent on what is possibly
the eve of horrific infliction of death and destruction on the
population of the nation of Iraq. Think about that.Oh, I know Saddam Hussein is the person who is primarily responsible. But how about us? How about ourselves?Yes,
there are going to be old men dying. There will be women dying. There
will be children, little boys and girls dying if this war goes forward
in Iraq. And American men and women will die, too.Iraq has a population, I might add, of which over 50 percent is under age 15.Over
50 percent of the population in Iraq is under age 15. What is said
about that? This Chamber is silent–silent. When it is possibly only days
before we send thousands of our own citizens to face unimagined horrors
of chemical and biological warfare, this Chamber is silent. The rafters
should ring. The press galleries should be filled. Senators should be
at their seats listening to questions being asked about this war,
questions to which the American people out there have a right to expect
answers. The American people are longing for information and they are
not getting it. This Chamber is silent. On the eve of what could
possibly be a vicious terrorist attack in retaliation for our attack on
Iraq, it is business as usual here in the Senate, and business as usual
means it is pretty quiet. There is not much going on in the Senate.
Business as usual.Oh, I know it may be
scare talk to talk about what may happen in the event of a terrorist
attack. But when the Twin Towers fell, it wasn’t scare talk. When
hundreds of local firefighters and police officers, law enforcement
officers died as the walls of the Twin Towers came tumbling down, it
wasn’t scare talk. It wasn’t scare talk.We
are truly sleepwalking through history. In my heart of hearts I pray
that this great Nation and its good and trusting citizens are not in for
a rudest of awakenings. To engage in war is always to pick a wild card.
And war must always be a last resort, not a first choice.But
I truly must question the judgment of any President who can say that a
massive unprovoked military attack on a nation which is over 50 percent
children is in the highest moral traditions of our country. This war is
not necessary at this time. Pressure appears to be having a good result
in Iraq. Our mistake was to put ourselves in a corner so quickly. Our
challenge is now to find a graceful way out of a box of our own making.
Perhaps–just perhaps–there is still a way, if we allow more time.
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