coul dany1 explain 2 me how is

cuO a base and sO3 an acid

i no its kiddish but i need a complete explanation

 

i would give u

 a 9 on 10

 

emma's pics r kewl

hey ...

even im from chd

choaching for in chd...

 

if ur only interested in an institute the

brilliant or competition zone is good

 

rate me if u find it useful

 

 

 

 

 

 HERE IS ONE FROM ME ALSO

 

DURING CIRCULAR MOTION

read this carefully

WHEN THE BOB IS HELD VERTICALLY AND IT IS WHIRLED IN THE HORIZONTAL PLANE

AN OBIVIOUS QUES ARRISES THAT EVEN THOUGH GRAVITATIONAL FORCE IS ACTING ON THE BOB WHY DOESNT IT ACCELERATE TOWARDS THE EARTH

 

THINK

 

AS WE START WHIRLING THE BOB - OBSERVE THAT THE VERTICAL COMPONENT OF THE TENSION FORCE SUPPORTS THE WEIGHT

U MUST BE WONDERING THAT THE THE STRING IS TOTALLY HORIZONTAL.

SEE THE BOB FALLS TO THE EARTH BUT DOES NOT ESCAPE TO THE EARTH AS THE TANGENTIAL VELOCITY OF THE BOB TAKES IT AWAY FROM THE EARTH .

SO WE CANNOT SAY THAT IT DOSENT FALL

IT FALLS BUT IS AT THE SAME TIME TAKEN AWAY ALSO . THAT IS THE REASON A CIRCULAR MOTION IS GENERATED