Sunday, February 1, 2009
My group, Janelle, Abigail, n I did this question.
Question: You are given a meter ruler, a pencil, and a copper wire. by using these items, how can you find the diameter of the copper wire?
Answer: Twirl the copper wire around the pencil. Measure the length of the pencil, then divide it by the number of turns of the wire. It will give you the diameter of the copper wire. Easy?
Then, Mr Lim talking about the water pressure. When the submarine is on the seabed, it wont be able to continue moving anymore because of the pressure on top of it. But you see, why cant they install a stand or a machine below the submarine? So whenever it's on the seabed, they could just activate the stand and push it upwards?
Jasley was here @
1:29 PM