think in this way:
try throw something around in a circle attached to a string..
the only force exists is centripetal force
the only thing that is supplying it is your hand
the only direction the object is feeling a pull is towards the hand.
hope that helps
forces and velocities...
$15PH FOR YOUR FIRST LESSON
Caution: I will be overseas from 21st Jan to 25th Feb 07 but I will make sure all is covered before I go & if any extra lessons are needed, they will be free. =P
THE BASICS:
name: Jing Zhang
year of graduation: 2006
price: $20 PH
school: cheltenham girls...
i reckon it was pretty easy
but probably hard for those who had chose certain topic to concentrate on, because the essays were a bit unexpected
overall, i hope i pwned it. (that would make it a first out of all my exam :p)
it depends on which perspective u r looking from
i will always argue poor r getting poorer despite how absolute poverty has been reduced
because even if they r all getting better, they arent imrpoving at the same rate
multiplier is simply the multified effect of a change in spending on income
effect would be, a small increase of AD can lead to much larger increase in Y, O, E, thusby stumli the economic activities