eda15
Newbie level 2
This is an example from a class. I'm trying to make sense of part (b).
![Screen Shot 2015-05-13 at 8.09.26 PM.png Screen Shot 2015-05-13 at 8.09.26 PM.png](https://www.edaboard.com/data/attachments/53/53134-6dc093efada105f3f3f5780a0d3080b6.jpg)
![Photo 2015-05-13, 8 08 29 PM.jpg Photo 2015-05-13, 8 08 29 PM.jpg](https://www.edaboard.com/data/attachments/53/53135-df174e27564df2a4e354ba3231ce2cb3.jpg)
It seems like uncertainty in theta2 is dependent on x2, which is proportional to T2. Then doesn't it mean there is more uncertainty when the mercury is higher? If so, then why does the d(theta2) in the answer have anything to do with freezing point?
![Screen Shot 2015-05-13 at 8.09.26 PM.png Screen Shot 2015-05-13 at 8.09.26 PM.png](https://www.edaboard.com/data/attachments/53/53134-6dc093efada105f3f3f5780a0d3080b6.jpg)
![Photo 2015-05-13, 8 08 29 PM.jpg Photo 2015-05-13, 8 08 29 PM.jpg](https://www.edaboard.com/data/attachments/53/53135-df174e27564df2a4e354ba3231ce2cb3.jpg)
It seems like uncertainty in theta2 is dependent on x2, which is proportional to T2. Then doesn't it mean there is more uncertainty when the mercury is higher? If so, then why does the d(theta2) in the answer have anything to do with freezing point?