laws of physics

Work, Energy and Power
Work Done by a force is defined as the product of
the force and displacement (of its point of
application) in the direction of the force
W = F s cos θ
Negative work is said to be done by F if x or its
compo. is anti-parallel to F
If a variable force F produces a displacement in the
direction of F, the work done is determined from the
area under F-x graph. {May need to find area by
“counting the squares”. }
By Principle of Conservation of Energy,
Work Done on a system = KE gain + GPE gain +
Work done against friction}
Consider a rigid object of mass m that is initially at
rest. To accelerate it uniformly to a speed v, a
constant net force F is exerted on it, parallel to its
motion over a displacement s.
Since F is constant, acceleration is constant,
Therefore, using the equation:
v2 = u2 +2as,
as = 12 (v2 – u2)
Since kinetic energy is equal to the work done on the
mass to bring it from rest to a speed v,
The kinetic energy, EK = Work done by the force F
= Fs
= mas
= ½ m (v2 – u2)
Gravitational potential energy: this arises in a
system of masses where there are attractive
gravitational forces between them. The gravitational
potential energy of an object is the energy it
possesses by virtue of its position in a gravitational
field.
Elastic potential energy: this arises in a system of
atoms where there are either attractive or repulsive
short-range inter-atomic forces between them.
Electric potential energy: this arises in a system of
charges where there are either attractive or repulsive
electric forces between them.
The potential energy, U, of a body in a force field
{whether gravitational or electric field} is related to
the force F it experiences by:
F = – dU / dx.
Consider an object of mass m being lifted vertically
by a force F, without acceleration, from a certain
height h 1 to a height h2. Since the object moves up
at
a constant speed, F is equal to mg.
The change in potential energy of the mass = Work
done by the force F
= F s
= F h
= m g h
Efficiency: The ratio of (useful) output energy of a
machine to the input energy.
ie
=
Useful Output
Energy x100%
=
Useful Output
Power x100%
Input Energy Input Power
Power {instantaneous} is defined as the work done
per unit time.
P
=
Total Work
Done =W
Total Time t
Since work done W = F x s,
P = F x s = Fv t
for object moving at const speed: F = Total resistive
force {equilibrium condition}
for object beginning to accelerate: F = Total resistive
force + ma
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the mind power

Olny srmat poelpe can raed tihs I cdnuolt blveiee taht I cluod aulaclty  uesdnatnrd waht I was rdanieg. The phaonmneal pweor of the hmuan mnid, aoccdrnig  to a rscheearch at Cmabrigde Uinervtisy, it deosn’t mttaer in waht oredr the ltteers in a wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be in the rghit pclae. The rset can be a taotl mses and you can sitll raed it wouthit a porbelm.   Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Amzanig huh? yaeh and I awlyas tghuhot slpeling was ipmorantt! if you can raed tihs psas it on  !!!

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love riddle

am just two and two
I am warm, I am cold,
I am lawful, unlawful
A duty, a fault
I am often sold dear,
Good for nothing when bought;
An extraordinary boon,
and a matter of course,
and yielding with pleasure
When taken by force.

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female circumsion

A doctor will stand trial for the first time in Egypt
on charges of female genital mutilation after the
death of a 13-year-old girl last year. The girl’s
father, who took her to the clinic, is also being tried
in the landmark prosecution.
It was June 2013, and Suhair al Bataa was burdened by
punishing heat, and a feeling of foreboding.
Friends say the youngster was frightened. They recall that
when she went to repair her shoes, she said it would be for
the last time. She told one of her sisters to look after the
other.
The top student was facing a brutal summertime ritual -
female genital mutilation (FGM). She did not survive it.
Widely practised
Suhair lived and died in a small farming community on the
outskirts of the Nile Delta city of Mansoura.
Beneath the lush green landscape lies a bedrock of faith and
tradition. Both play a role in perpetuating FGM.
It has been outlawed since 2008 but is still widely
practised in Egypt, which has one of the highest prevalence
rates in the world.
Over 90% of women under 50 have experienced it,
according to government figures.
The removal of all or part of the external genitalia is done
in the name of promoting chastity. Some parents see it as
a religious duty in spite of a ruling against it by one of
Egypt’s leading Islamic authorities, the Grand Mufti.
Typically it is carried out on girls aged between nine and
13 but there are victims as young as six, according to
campaigners against FGM.
They say there are even unconfirmed reports of newborns
being subjected to it.
Outside Suhair’s modest home, her relatives defended the
practice, and insisted no-one was to blame for her death.
“It is God’s will,” said her grandfather Mohamed al Bataa, a
gaunt-faced man wearing a brown gallabeya (traditional
floor-length shirt). “We are not angry with the doctor. The
doctor does not want to kill anyone. We are all sorry, and
definitely we regret this.”
But when asked if it was right to subject Suhair to FGM,
her uncle Hassan’s response was swift. “Yes of course,” he
said. “It has been done in the countryside for a long time.
People here are used to it. Without circumcision, girls are
full of lust.”
Hidden death toll
Suhair’s grandmother, after whom she was named, told us
she herself was circumcised when she was about eight
years old.
“We were four sisters, and we were circumcised in one
day,” she said. “Each of us was put in one corner of the
room. Afterwards they gave us food and drinks.”
Suhair’s uncle said FGM was necessary to keep girls’ sexual
desires in check
Gypsies used to carry out the circumcisions, she told us,
placing dust and salt on the wounds.
These days doctors carry out more than 70% of FGM
procedures in Egypt. That is part of the problem, according
to Philippe Duamelle, of the UN Children’s agency, Unicef.
“It’s perceived as being safer, but no-one learns how to do
this at medical school. We should definitely assume more
girls are dying as Suhair did,” he said.
The number of girls killed by FGM in Egypt is unclear,
according to Mr Duamelle, because deaths are recorded as
haemorrhages or allergic reactions to penicillin.
That was the reason put forward by Suhair’s doctor, Raslan
Fadl Halawa, when we tracked him down at the private
clinic in his home.
Suhair’s neighbours say the clinic was well-known for FGM,
with up to a dozen procedures carried out there every day.
Dr Halawa denied performing FGM on Suhair and said he
had only treated her for genital warts.
The doctor, who was visibly agitated, said the penicillin was
given to her by someone else. Prosecutors think otherwise.
They are putting Dr Halawa on trial, together with Suhair’s
father, who brought her to his clinic.
Easily arranged
Campaigners warn that support for FGM is hard to quash -
even in Suhair’s village.
“The case has started a debate among the liberal-minded,”
said Mohamed Ismail, who works for a local women’s rights
organisation. “But for the dogmatic even the death of the
girl hasn’t changed their minds.”
As we filmed in Suhair’s village, we found evidence of that.
“What’s all the fuss about?” one old woman asked. “Why
did you come here? A thousand or so girls were
circumcised after she died.”
Hanan, a fruit-seller, sat nearby with her infant daughter
Farah on her lap. She told us she plans to have the curly-
haired infant circumcised, by a doctor, when she reaches

puzzle

“I’m an 8 letter word. I’m kept a secret by everyone, my 234 letters spell an animal. My 45678 is a weapon. My 128 is used for writing an exam. My 34 letters are same.food for thot,test ur brainz!!!

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miguel

Do you like drugs?
Have you ever felt alone?
Do you still believe in love?
[Hook:]
But do you like drugs, do you like drugs, yeah?
Well, me too, me too, me too, babe, me too, me too
Do you like love, do you like love, yeah?
Well, me too, me too
It’s what we gonna do
[Verse 1:]
What about matinee movies and pointless secrets
Midnight summers, swim private beaches
Rock, paper, scissors, wait best out of 3
Mama said the greatest things in life are free
What about lust, what about trust
What about fun? She said, you know that I do
Oh you do baby, hope you do now
You do, do, do, do
[Hook:]
But do you like drugs, do you like drugs, yeah?
Well, me too, me too, me too, me too, me too
Do you like love? Do you like love, yeah?
Well me too, me too
It’s what we gonna do
[Verse 2:]
Tonight, so let’s dance a little harder
Till I feel like I know
All the things
[Hook:]
Do you like drugs, do you like drugs, yeah?
Well, me too, me too, me too, me too
Do you like hugs? Do you like love?
Feel like we got so much in common now
Right about now baby
Me too, me too
It’s what we gonna do
It’s you and me, yeah, tonight
You and me tonight
You and me tonight
You and me tonight
You and me tonight
You and me, yeah, tonight
You and me tonight, oh
Feel like I’ve known you for so long
Right about now baby, yeah, yeah
I wanna do you like drugs tonight
I wanna do you like drugs, oh oh…
Thanks to gideon mwanza for garhering the lyrics

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my talent philosophy

“My philosophy is that not only are you responsible for your life,but doing the best at this moment puts you in the best place for the next moment.”Do what you can with what you have,where you are.The toughest thing about success is that you’ve got to keep on being a success. Talent is only a starting point in business.working that talent.”
“Everything we know we learnd from someone else!”You cannot escap the responsibility of tomorrow by evading it today.(He who deliberates fully before taking a step will spend his entire life on one leg)chibese proverb.the greatest time wasted is the time getting started.
By gideon mwanza

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metaphors

Metaphor Examples

The definition of a metaphor is “a figure of speech containing an implied comparison, in which a word or phrase ordinarily and primarily used of one thing is applied to another (Ex.: the curtain of night, “all the world’s a stage”).”

There are two types of metaphors:

a simile, where two unlike things are compared followed by a figurative example.
an analogy, where a literal comparison is made between two things.
Both types of metaphors typically use the word like or as followed by the comparison. If this is confusing, take a look at some of these metaphor examples to get a better understanding of exactly what a metaphor is.

Metaphor: Situation vs. the Real Thing
You may have often heard expressions such as “he drowned in a sea of grief” or “she is fishing in troubled waters,” or “success is a bastard as it has many fathers, and failure is an orphan, with no takers.” All these expressions have one thing in common: a situation is compared to a real thing, although the situation is not actually that particular thing.

Sea of grief – How and where does one come across a sea that is filled not with water, but with grief?
Fishing – It is not used to mean that the person is actually fishing; it is an expression which is used to signify that the person is looking for something that is difficult to obtain.
Success is a sense of achievement, it is not an illegitimate child! – The saying is used to reinforce the age-old belief that everyone wants to take credit for something that became a success, either by fluke or by conscious effort. On the other hand, no matter how much effort or creativity may have gone into an enterprise, the moment it is considered a failure, no one wants to take responsibility for it, much like an abandoned infant.
Broken heart – Your heart is not literally broken into pieces; you just feel hurt and sad.
The light of my life – The person described by this metaphor isn’t really providing physical light. He or she is just someone who brings happiness or joy.
It’s raining men – Men do not literally pour from the sky; there are simply an abundance of male suitors around at the time.
Time is a thief – Time isn’t really stealing anything, this metaphor just indicates that time passes quickly and our lives pass us by.
He is the apple of my eye – There is, of course, no real apple in a person’s eye. The “apple” is someone beloved and held dear.
Bubbly personality – A bubbly personality doesn’t mean a person is bubbling over with anything, just that the person is cheerful.
Feel blue – No one actually ever feels like the color blue, although many people say they are “feeling blue” to mean they are feeling sad.
Fade off to sleep – You don’t actually fade, you simply go to sleep.
Inflamed your temper – The news inflamed your temper is not a situation where there is any actual fire or flames, it is just a situation where someone gets mad.
Reeks of infidelty – When said about a cheating partner, this doesn’t actually mean that there is a literal smell. Instead, it is just apparent that the person is cheating.
Rollercoaster of emotions – A rollercoaster of emotions doesn’t exist anywhere, so when people are on a rollercoaster of emotions, they are simply experiencing lots of ups and downs.
Stench of failure – The stench of failure is strong, according to the common metaphor, but of course failing doesn’t really smell.
All of these expressions are examples of metaphors which are also similies. They are juxtaposing an actual (literal) thing and a figurative thing in order to give more meaning to the figurative concept. To use the above examples, the literal expression in the phrase is “sea,” while “grief” is the figurative item.

An example of a metaphor that is an analogy would be so say “The house looked like it was designed in the 1940s.”

For metaphors that kids might enjoy, check out Metaphor Examples for Kids.

Purpose of Metaphors
Expressions are used to give effect to a statement. Imagine how bland a statement such as “he was sad” is, compared to a statement describing a “sea of grief.” The metaphor is sure to give the reader a better idea of the depths of grief in this situation.

Similarly, who would really spend time thinking of the vast differences between success and failure if the metaphor was missing, and the statement was just “Everyone wants to be successful, no one wants to be a failure?” That statement would be a failure itself, in inspiring interest in the conversation!

Metaphors are meant to create an impact in the minds of readers. Other kinds of expressions that belong to this genre are:

analogies, which are literal comparisons
hyperboles, which are exaggerations
antitheses, which use contrasts to prove a point
The aim of all these literary tools is to convey a thought more forcefully than a plain statement would.

 

This, in essence, is what metaphors are about. They are exaggerated expressions no doubt, but they are exaggerated because they are supposed to paint a vivid picture, or become a profound statement or saying.

Do you have a good example to share? Add your example here.
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april fool

A Man entered Pick n Pay this morning & grab 15
trolleys then started filling them with grocerries.
Everyone inside the supermarket was surprised;
So
people stopped their shopping & Watch the man.
The
man went to the till points & the cashier started to
scan the items filled the plastic bags. The Total
due
was K160,000,000 Everyone including store
manager
came near to see how on earth is the man going
to pay
that huge amount of money. The man entered his
hand inside his pocket & took it out again….Then
he
said “Guess what? its April Fool” & He left the. Pick
n.
Pay supermarket. The manager Fainted

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is sodomy behind hiv spread in prisons?

The four walls of prison became home for sililo muyunda (real name with held),after spending eight years following his conviction for aggravated robbery in 2003.
His experince in prison began with twi and a half years at lusaka central prison,being committed to kabwes mukobeko
Maximum prison,where he spent six years
Fortinately,mr muyunda and other inmates received the prisendents prerogative of mercy

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loyal

Loyal’Lyrics
Young Mula, baby
You thought it was over?
[Verse 1: Lil' Wayne]
I wasn’t born last night
I know these h-es ain’t right
But you was blowing up her phone last night
But she ain’t have her ringer nor her ring on last night, oh
Ni–a, that’s that nerve
Why give a bi-ch your heart when she’d rather have a purse?
Why give a bi-ch an inch when she’d rather have nine?
You know how the game goes
She be mine by half time, I’m the sh-t, oh
Ni–a, that’s that nerve
You all about her, and she all about hers
Birdman Junior in this bi-ch, no flamingos
And I done did everything, but trust these h-es
(CB f–k with me!)
[Chris Brown:]
When A rich ni–a want ya
And your ni–a can’t do nothing for ya
These h-es ain’t loyal
These h-es ain’t loyal
Yeah, yeah, let me see[Verse 2: Chris Brown]
Just got rich
Took a broke ni–a bi-ch
I can make a broke bi-ch rich
But I don’t f–k with broke bi–hesGot a white girl with some fake ti–ies
I took her to the Bay with me
Eyes closed, smoking marijuana
Rolling up that Bob Marley
I’m a rasta
She say she wanna do drugs,
Smoke weed, get drunk
She wanna see a ni–a trapped
She wanna f–k all the rappers
[Chorus:]
When a rich ni–a want you (want you baby)
And your ni–a can’t do nothing for ya (nothing no)
These h-es ain’t loyal (no they ain’t)
These h-es ain’t loyal
Yeah, yeah, let me see
[Verse 3: Chris Brown]
Black girl with a big booty
If she a bad bi-ch, let’s get to it right away
We up in this club
Bring me the bottles
I know girl, that you came in this bi-ch with your man
That’s a no no girl
All this money in the air
I wanna see you dance
Just got rich
Took a broke ni–a bitch
I can make a broke bi-ch rich
But I don’t f–k with broke bi-ches
[Chorus:]
When a rich ni–a want you (want you baby)
And your ni–a can’t do nothing for ya (no, nothing)
These ho-s ain’t loyal
These ho-s ain’t loyal
Yeah, yeah, let me see
[Verse 4: French Montana]
With ciroc in the system?
Ain’t no telling will I fu-k them, will I diss them
That’s what they be yelling, I’m a pimp by blood
No relation, I don’t chase‘em, I replace‘em
LVs, Hermes, Dolces
Them h-es ain’t loyal. Man, they rotate
School me to the game, now i know my duty
Put it in the loader
She was riding in the hoot
F-ck that bi-ch
I got my own h-e
F-ck your weed
I got my own smoke
Had to put my mink back on
Tell that bi-ch
Put a ring back on
Montana
[Chris Brown:]
Come on, come on, girl
Why you frontin’?
Baby show me something
When I call her, she gon’leave
And I bet that bottom dollar she gon’cheat
Come on, come on, girl
Why you frontin’?
Baby show me something
You just spent your ring on her
And it’s all for nothing
[Chorus:]
When a rich ni–a want you (want you baby)
And your ni–a can’t do nothing for ya (can’t do nothing for ya)
These ho-s ain’t loyal
These ho-s ain’t loyal
Yeah, yeah, let me see
When a rich ni–a want you (want you baby)
And your ni–a can’t do nothing for ya
These ho-s ain’t loyal
These ho-s ain’t loyal
Yeah, yeah, let me see
Yeah, yeah, let me see
Yeah, yeah, let me see
Let me see
These ho-s ain’t loyal
Let me see

translating my feelings

It only hurts when you start pretending it doesn’t I kinda like someone who gets jealous and protective but still trusts me A True relationship is having someone who accepts your past, supports your present, loves you and encourages your future. It’s hard to forget someone who gave you so much to remember.

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