What does this quote mean from The Secret Life of Bees?The quote is "We can't think of changing our skin. Change the world -that's how we gotta...

The following quote is from the novel The Secret
Life of Bees,

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We can't think of changing our skin. Change the
world- that's how we gotta
think.

The meaning of this
quote is based upon the fact that there are certain things that one cannot change in
their life. The color of ones skin is something that is physically unable to be
changed.

Instead of people wishing that they can change the
things they cannot, they should, instead, focus upon changing the things which they
can.

The world is something that all people can change-
even the ones who wish to change the color of their skin. It is not the color of a
person's skin that actually needs to be changed. It is, instead, the mentality of those
around them (those who harbor prejudices and stereotypical thoughts) which need to be
changed.

The quote is basically saying that one needs to
focus upon the things that are changable- people's minds, people's prejudices, people's
stereotypes. Why bother with trying to change something one cannot- it is simply a waste
of time. The only way to make a true difference is by changing what one can- the world,
one piece at a time.

A+B+C =180. The question is to prove sin2A-sin2B+sin2C=-4sinAcosBcosC. I get sin2A-sin2B+sin2C=-4sinBcosAcosC, am I right?

It is given that A + B + C = 180. We have to prove that
sin 2A - sin 2B + sin 2C = -4*sin A*cos B*cos C

sin 2A -
sin 2B + sin 2C

=> 2*sin [(2A - 2B)/2]*cos[(2A +
2B)/2] + sin 2C

=> 2*sin (A - B)*cos(A + B) + sin
2C

=> -2*sin (A - B)*cos C + 2*sin C*cos
C

=> -2*cos C[sin(A - B) - sin
C]

=> -2*cos C*2*sin[(A - B - C)/2]*cos[(A - B +
C)/2]

=> -4*cos C*sin[(A + A - 180)/2]*cos[(180 - B
- B)/2]

=> -4*cos C*sin(A - 90)*cos(90 -
B)

=> -4*cos C*cos A*sin
B

The result that you have got is
right.

How accurate was Orwell in his vision of the future, and in what ways does our contemporary society compare to his idea of society in 1984?

George Orwell wrote 1984 in 1948, and
it was not so much a work of science fiction as it was speculative fiction, using the
premise of a Western democratic society (Britain) falling victim to ultra-liberal
(communism) or ultra-conservative (Nazism) regimes.  In other words, he did not intend
this society to necessarily exist in 1984; it could have existed as soon as 1948 (if the
communists might have won the Cold War that early, let's
say).

The society in 1984 is governed
by fear (first half) and pain (second half).  Fear is managed by censorship, propaganda,
government-controlled mass media, rationing, police-state surveillance and profiling,
mandatory extremist nationalism, and a war against family and education (Ministry of
Peace, Ministry of Truth).  Pain is managed by institutional torture (Ministry of Love),
brainwashing and reconditioning, and the murder of political
dissidents.

We are not seeing this society whole-scale in
Western democratic governments, but are seeing it in small-scale, especially in mass
media.  Currently, Google and Facebook profile in greater numbers than even Orwell could
have imagined; the irony, of course, is that most of us don't mind it.  In fact, we all
but consent to it because we feel it is contributing to a group database or network.  We
have agreed to give up certain individual rights to privacy so that we can, in a sense,
be victims of and play the role of Big Brother.  We like voyeurism as much as the Secret
Police: just look at reality TV programming!

Currently,
Britain is a police-state: their country has cameras on nearly every street corner, and
they recently used face-detection technology to find and indict the looters in the
London riots.

We have seen torture in our country's War
against Terror: waterboarding, Abu Ghraib prison (Iraq), Guantanamo Bay prison (Cuba).
 Many have justified excessive force in capturing and killing the terrorists of
9/11.

What are the themes of The Phantom Of Opera?

There are several themes that carry throughout the novel
(and which have been also used effectively in the Broadway musical version) that are
enduring and reflect not only the society at the time the piece is set but also are
equally appropriate reflections of the modern world. This is one of the reasons that the
piece has had such an enduring popularity.

The first is the
element of appearance as a "mask" for reality. People are not always as they appear. Of
course, Erik is the example that comes most easily to mind. He hides his disfigured face
behind a mask, he moves in and out of the hidden underground corridors using his
knowledge of them to craft the illusion that he is a "phantom" as well as to take that
illusion one step further to appear to Christine as her "Spirit of Music" when she is
most ready to believe in him. But Erik is not the only examplee. The opera itself, and
theatre as a whole, is a place of illusions. Actors take on roles, and what seems to be
magic is really the technical expertise of stage hands and designers. We are transported
as audience into a world of illusion, and the novel, in taking us behind the scenes,
allows us to see behind the mask of that illusion. Appearance is not always
reality.

Another theme is that of innocence. Christine's
naivety is what makes it so easy for her to fall for Erik's rhetoric. She also stands in
counterpoint to Erik, who has been rejected by the world because he is disfigured. This
really ties back into appearance and reality, to an extent. Because of his appearance,
he has been rejected which, by extension, has made him become the monster that people
viewed him as from the start. We make assumptions, judgements, about people because of
their looks. Christine is young and beautiful, so she must be good. Erik is scarred and
disfigured o he must be evil. And, in the end, this sometimes becomes a self-fulfilling
prophesy. Erik had no other place in society where he could become powerful than the
role that he chose. This raises the question of what is our greatest influence -
ourselves or the society in which we live. A common theme in literature is the
exploration of what it means to be the "other" or that which is not the norm. Erik  is
different, and it is his difference that causes him to be rejected, scorned, and even
feared by society.

Erik and Christine also serve as
thematic counterparts in terms of the way in which childhood has shaped them as adults.
Erik is longing to experience the kind of childhood that Christine must have had, so he
sees in her a surrogate mother. This is evidenced in the fact that the room he has for
her is a carbon copy of the room that his mother lived in when Erik was a child.
Christine, in wanting to return to the happiness of her own childhood, sees in Erik that
Spirit of Music her father had promised her, and she longs to believe in him. He becomes
a replacement of sorts for the father that has been lost. Psychologically, this is a
reflection on the connections that are created between parents and their children. For
Christine, that was one of a loving and healthy relationship that she longed to have
back. For Erik, it was one of rejection - even his mother rejected him - and he was
looking to experience something that he had never had. In the end, as he releases her
from captivity, she releases him through her acceptance of him. The fair maiden has
tamed the monster - another common theme of literature wherein innocence triumphs over
evil.

Why does Winston hate the Party?

The Party stands for everything that is contrary to
humanity. Winston is old enough that he is still experiencing remembrances of life prior
to Party control. He can imagine his mother and sister and he knows they died. He has
recollection of his wife, not that he really loved her. He recognizes that what the
Party is doing is wrong, yet is really powerless to do anything about
it.

He hates the Party for the apathy created in him, for
the dissappearance of his family, and for the recreation of truth. He hates the Party
later in the book because it makes it difficult to experience a relationship with Julia.
He hates the lack of privacy he has. He hates the Party in the end because they worked
hard to break and torture him.

Most of all, the lies of
society and manipulation of the people resound to the reader through the character of
Winston.

There is a spade being held above a flat area of soil. The spade is released and falls vertically. It takes 0.29s for the blade to reach the...

Because it is being held vertically, when it is released
it accelerates due to gravity.  The initial velocity is zero because it is not moving.
The equation to use is:

Vf = Vi + gt where Vf is the
velocity just before it hits the ground, Vi is the initial velocity, g is 9.8 m/s/s, and
t is the time in seconds.

Solving you get:  Vf = 0 + 9.8 *
0.29 = 2.842 m/s

Once the spade hits the ground it starts
slowing down until it comes to a stop. In this case the final velocity is zero, the
initial velocity is the just calculated 2.842 m/s, the distance traveled is 50 mm or
0.050 m, and the rate of slowing (the acceleration is
unknown).

The appropriate kinematic equation is:  Vf^2 =
Vi^2 + 2a(Yf - Yi)

where Vf is the final velocity =
0

Vi is the initial velocity = 2.842
m/s

(Yf - Yi) is the distance traveled = 0.050
m

a is the acceleration you are looking
for.

Solving you get:

0^2 =
2.842^2 + 2a(0.50)

a = -8.077 m/s/s  The minus sign
indicating the spade is slowing down.

A ship needs to evacuate a seriously sick sailor. The ship’s captain will not stop the ship nor change course. The ship is traveling on a...

A seriously sick sailor has to be evacuated from a ship.
As the ship's captain will neither change the course of the ship nor stop it, a
helicopter has to be used to lift the sailor from the ship. When it is decided that this
has to be done, the ship is located 10 km at a bearing of 200 from the helicopter base
and is traveling at a speed of 47 km/h at a bearing of
80.

Optimization can be used here to minimize the distance
that the helicopter has to fly. The least distance that the helicopter has to fly and
the time at which the ship reaches there can be
determined.

The helicopter is closest to the base when the
length of the perpendicular drawn from the base to the line representing the path
followed by the ship is the shortest. Let the time when this happens be
T.

The length of the perpendicular is given by D where D =
47*T*tan 60 and D^2 + (47*T)^2 = 10^2

=> `(47*T*sqrt
3)^2 + (47*T)^2 = 100`

=> 6627*T^2 + 2209*T^2 =
100

=> T^2 =
100/8836

=> T = 0.106
h

D = 8.66
km

The ship would be closest to the base
after 0.106 hours and at a distance of 8.66 km.