Monday, January 11, 2010

Homework 1/11

1.b Process: (Time interval): From when Chris leaves his house until he buys a bagel, the money is constant
System: (Chris is the system): He doesn't gain or lose money.

We know this because when you draw out the bar charts, you see that there is no change.

1.c. Process: (Time interval): From when Chris buys lunch to when Charles pays him back.
System: (Chris is the system): Chris starts with 10$ and gains 10$ so his bar chart changes between the two, meaning that the money is not constant.

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