Wednesday, February 25, 2009

Chemistry:Cannon Firing Blog Question Assignment

1) The design when chose had a 35 degree angle and a small chamber. We cut the tennis ball can to make a shorter chamber because it would give the cannon more pressure. We had a divider in the cannon design but we couldn't get it to stay so we just took it out. If we had had the divider in the pressure would have been greater.



2)We chose the 35 degree angle because it would not take as much force as a 45 degree angle would have (or any other angle that is higher than 35 degrees)



3) Before we shot off the cannon weren't sure whether our cannon would shoot or not. I felt that our cannon was a good design but that it could have been better. I was not sure how the factors outside would affect our cannon. I felt that if it had been in a regularly warm temperature that it would fire. However, since it was cold outside, I doubted whether it would fire. I say a regularly warm temprature in the fact that it is a usually warm climate where I live.

4) During construction, we encountered a few difficulties. We had to be sure that we knew what our end product was going to be because if we messed/ used up our materials we would not get anymore. Also, we had to use the tape sparingly and use more on parts that we would need to be airtight.

5) 0 feet

6) (calculations shown under math post) Vo= 0

-the intial velocity was zero!

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