PROJECTILE MOTION

DEFINITION:
The motion of a body which is affected by only one force that is the force of gravity OR Projectile motion is the motion in which a body is given some initial velocity and then it is left to move under the force of gravity.

EXPLANATION:
The only force which is acting on the projectile is the force of gravity which is the downward vertical in direction.We resolve the motion of the projectile into its components i.e the X-component and the Y-component{These components are the perpendicular to each other}.

If you see this image you will notice that the projectile starts a upward motion but then the initial velocity given to it is overcomed by the force of gravity and it starts the downward descent.The path followed by the projectile is called parabola which depends on the initial velocity or original velocity and the theta formed by the parabola with the horizontal component which is the X-axis.

There are different aspects to this motion like that of acceleration,time taken by the whole flight,Range,and the highest point reached by the projectile during its motion.There is no acceleration on the X-component because there is no force acting on the body along X-axis so we can say that according to newton’s first law when there is no force there is no acceleration and the body’s velocity will remain constant.

Force=0 then acceleration=o and velocity=constant [NEWTON'S FIRST LAW]

But gravity is acting on the Y-component so the acceleration will be equal to ‘g’ [acceleration due to gravity].Because the two components of a vector are independent of each other that is why Y-axis which is affected by gravity doesn’t affect the constant velocity of the X-axis.

the x-axis velocity remains constant

.

RANGE:
It is the horizontal distance covered by the projectile.It is governed by the velocity along X-axis which is always constant. R= (u2sin2Ø)/g is the formula for range in which u is the initial velocity squared along X-axis.Maximum range is attained by keeping the value of sine theta maximum in which initial velocity and ‘g’ are kept constant.If sin 2theta=1 then Range=maximum.

sin 2theta=sin 90 degrees
2theta=90 degrees so, theta = 45 degrees
Thus projectile launched at 45 degrees will travel max range.

TIME OF FLIGHT:
It is the total time taken by the projectile in the air. Its formula is T= (2usinØ)/g.

MAXIMUM HEIGHT:
It is the maximum height reached by the projectile during its upward motion.It is on the half trip of the projectile that it reaches its maximum height.H= (u2sin2Ø)/2g is its formula in which u is the initial velocity squared and over here the sine theta is also squared.

Test your internet connection speed online(2 websites).

To test your internet connection speed online go to
1.
Speed.io.
http://www.speed.io/index_en.html

2.

Speed test speakeasy
http://www.speakeasy.net/speedtest/

Speed io will give you the detailed info about your connection tnx.
Leave a comment.

bashoo
writer

Slow internet (no problem) what to do,Great hacks.

When you finish reading this then you will have no problem of internet speed.

Recommended explorer is firefox. download by clicking this link

http://www.mozilla.com/en-US/firefox/personal.html

Following programs you must have in your computer.

download ccleaner

http://www.filehippo.com/download_ccleaner/

cleaning program that will improve your page loading speed.

download defragger

http://www.piriform.com/defraggler

this program will improve your net speed but also computer speed.

two great program for speeding up your comp.

Your software must be updated version.

Another method that is used is IP changing in the TCP setting or internet protocol setting this method is new.

write these numbers in preferred DNS server and Alternative DNS server

In preferred DNS server

208.67.222.222

In alternative DNS server write

208.67.220.220

this is exclusive method that will make your inter connection faster i have used it myself and it works.

bashoo
writer

return for more bye for now i will update thz with more info

Basic defination of chemistry.

some basic defination.

chemistry:
The study of structure, composition, properties of matter and the changes it undergoes during a chemical reaction.

Matter:
Anything that occupies space and has mass is called matter.

Mass:
Quantity of matter in an object.

Weight:
The force exerted by gravity is called weight.

Atom:
Small particles of matter that compose any substance.

Element:
A pure substance that is made of only one kind of atoms.

Molecule:
The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms is called molecule.

Ion:
When an atom lose or gains and electron, then it becomes electrically charged that is called ion.
hope this will help.

bashoo
author

Hacker? Hacking? Hacked?

Hacking? Hacker? Hacked?

Hacking started when two guys hacked into the system of phone company, they used to call for free from booths etc. At that time they called it Phone Phreaking, they had a device, they would connect one of the wire to there hacking device and they used to press some codes and the call would be free then, job done.
The governments did not have any law for this crime, when they made this for law phone phreaking, but they still used to hack into the system of phone companies, at last they caught one of the friend of the two inventors but very soon he was released.
Very soon people came to knew about it and most of the hackers began hacking, it was a hobby at that time.

in technical terms.

A person who writes programs in assembly language or in system-level languages, such as C. The term often refers to any programmer, but its true meaning is someone with a strong technical background who is “hacking away” at the bits and bytes.

Hacker takes control of the system without the approval of the administrator.

How to do hacking, finding a software on net is not available and if you want to do hacking then you have take some lessons from former hackers who will tell you have to learn the technical side of the computer like how software are made they are called language software c++, Basic etc. Make sure you don’t get fooled by the videos on youtube.com and hacking sites etc they are all fake. The website they describe you most of them are fake, when you google why these website doesn’t open then you will come to know you need a proxy or proxy software,if you use a proxy still most of these website will not open. But in my experience using a proxy will make your net extremely slow like if you 2 mb if use a proxy software then your speed of net becomes 1 mb or less than that.

Today hacking has become extremely difficult because security software has improved and now days even the operating system has so much security it has become extremely difficult to hack into a system, in young days of hacking the operating system was DOS easy to hack into.
Governments has approved laws that has made it extremely difficult to hack, hacking still exist but it’s rare, government backed hackers in china, India, Russia, America etc still exist, now days they don’t consider it a hobby but a cyber-crime.
You can get lot of info about hacking with google e.g email hacking a personally tried a lot of the methods, let’s take you want to hack gmail account ok they will tell you send the email as

masterprovider@gmail.com
your password
your target email id

Writer
bashoo

Vista Vs XP?

xp

light
good
reliable
user-friendly

Vista
heavy
not user-friendly
some programs don’t run on vista

bashoo

Students and their Focus

It is important that from time to time one evaluates one’s studying habits. A lot of students have personal problems which are affecting their performance at school or college. Neither parents or teachers pay enough attention to this aspect of young student lives.
Normally young students have focus problems and they are not able to do one thing for very long. It could be a symptom of a problem lying under the surface.This is mainly because we the student are involved in so many other things such as movies ,sports,computer games, music and activities with friends, online or in the neighborhood. There is also a problem of thinking about such interests or activities when alone or when reading book etc, because simply we have allowed these activities a greater share of our mind. So no wonder , we will have problems with focusing on studying and you will get bored because you are thinking is somewhere else.

Now you need to do soul-search and ask yourself some sensible questions:
How much of my time goes into listening music, tv, games etc?
The time I spent studying is productive?
Do I set study goals and how often I forget them?
Do I sit on a chair or lean against wall? if against wall, not a good idea because it is bad habit of studying.

Hope it was relevant to you ….leave a comment

Team
Thinkeredu

CoMMoN CoLD: how to prevent and treat it

Common cold comes and says a hello to you when winter says hello to you.

This common cold is such common that’s why it’s called common cold.

so why its so common why
common cold virus really spreads fast just by touching the thing of the infected.
THe common cold virus has extra layer on it so it actually defends itself pretty good and can defend itself against white blood cells.

SO keep in mind dont touch the things of infected if you touch it then there is a way.

1. If u have touched his things then wash your hands

2 Dont waste your money on medicine etc bcz this is virus would be there till 4 5 days then slowly die so dont.

3 A myth dont keep your head and nose exposed to fresh air in my point of view that’s a real stupid thing to do because if there is no fresh air then how can u cure self dude u have to be take fresh air and pump your body to fight the germs that has invaded you, fresh air will make things real hard for the germs and bacteria bcz they dont want any fresh thing they want dirt and dirt and if u provide the setup then that’s the big mistake.

4. Drink alot of water h2o great for health.
i will come with new ideas so tnx until
bashoo

Is CLIMATE change just a drama or is it?

lets write about this special topic
people are widely scared of climate change because world is gonna die soon and they will also die, scared people.

so whats the point
climate change.

they estimate oh in round about 100 years this world be so hot,no one will live here that’s true but there is a question in what sense?

Climate_change.com says

The IPCC synthesis report 2001, shows that the earth warmed between 1900 and 1940, then subsequently cooled between 1941 and 1965, but surface temperatures have been warming ever since.

this is true and the year of 1998 was hottest the years.

But the question still remains what is doing it?

Green scientist says its happening because
of CO2 it pollutes the air and changes CO2 to .CO3.

Non Green scientist says this

natural variation in climate as the world emerges from a mini-ice age (Kuo, Lindberg, and Thornson, 1990). They make the point that atmospheric concentration of CO2 has widely varied over time, the highest estimates being over twenty times higher than at present, and the lowest at approximately 18th-Century levels (Berner, 1997).

Now my turn what I say

Ok green and non green guys wtsp,
1 . if u take a look at the sun u would come to know that the explosion by hydrogen and helium has increased so the temperature is rising and more heat is being produced so the climate temperature is slowly rising. This is the first cause in my point.

2. scientist have discovered that the sun and the other planets are at constant move to a star called wega star and the sun is becoming more nearer to our earth and thus causing temperature to increase.

3. sun spot are increasing so this can be a reason.

this is my possible three causes of climate change and all other stuff just…………
tnx
author bashoo

What is Physics(lesson1)

Physics a greek word meaning?
My easy defination

“Study of matter and energy and their mutual relationship.”

Video definition and my definition are the same but the words are different.

Lets see the definition of WikiPedia

Physics (Greek: physis – φύσις meaning “nature”) is a natural science; it is the study of matter[1] and its motion through spacetime and all that derives from these, such as energy and force.[2] More broadly, it is the general analysis of nature, conducted in order to understand how the world and universe behave.

u can send me queries about physics any problem,question
this blog is for u