Saturday, February 12, 2011
Friday, February 4, 2011
the first family Re-union with Xin
is too great to know that he is coming back for CNY2011. We are happy , satisfy, great and somehow has feeling of greedy to grab more and more happiness moment together..
however, my faults make me some regrets. unable to back home at time. waste my mum's efforts to make me the medicine. Hais, will never repeat// promise ...
 |
| at mohideen, as usual - Lim Teh |
 |
| our first family photo in Costume Tang ^^ |
Tuesday, February 1, 2011
Dog Chase Cat
question : "an eraser is put on the table, both eraser and table exert a force on each other based on newton's third law of motion. now, let's imagine, take up the eraser to some distance away from the table surface and drop it down after few seconds. "
"is the eraser exerting a pressure on the substance around it? [pressure is defined as force per unit surface area]"
brief explanation :
when cat running at a speed of 50km/s , and there is a dog chasing behind with the same speed. so, the cat and dog will never be at the same point in space if the dog never accelerates, or the cat never experience deceleration.
same to eraser. It actually exert pressure on the air molecules below it, and air molecules too exert pressure on the table. So, the is the relative motion between the eraser' surface, air molecules and the table's surface. and, this is a free fall motion.
haha :P
happy cny 2011
"is the eraser exerting a pressure on the substance around it? [pressure is defined as force per unit surface area]"
brief explanation :
when cat running at a speed of 50km/s , and there is a dog chasing behind with the same speed. so, the cat and dog will never be at the same point in space if the dog never accelerates, or the cat never experience deceleration.
same to eraser. It actually exert pressure on the air molecules below it, and air molecules too exert pressure on the table. So, the is the relative motion between the eraser' surface, air molecules and the table's surface. and, this is a free fall motion.
haha :P
happy cny 2011
