1. Fall wk 2 – Mon.4.Oct.04 Welcome, roll, questions Revisit Calculus from last Thursday break Energy Ch.2 3:30 visitors: measuring energy use on campus Looking ahead Energy Systems, EJZ

2. Questions WebX Energy PIQ I will look for your posts in the morning before class Opportunity to address your Q in more depth Please remember to finish inQsit surveys if you have not already done so

3. Revisit Calculus - outline 1. 2 Exponential functions – review and practice 1.3 Inverse functions, stretches, shifts Wiley says they have fixed eGrade – please see if your registration works If eGrade doesn’t work for you yet, hand in paper homework for now.

4. Calculus 1.2: Exponential fxns #32 Nicaragua’s inflation rate 1.3% per day P(t) = P 0 a t #36 Radioactive strontium-90 in bones How much Sr absorbed in 1969 remains in bone in 1990, if the half-life is 30 years? P(t) = P 0 e t Why use e instead of a?

5. Calculus 1.3: New functions from old Ex: Oil slick area depends on growing radius Area depends on radius: A(r) = Radius grows in time: r(t) = 1+t (graph these) How does area grow in time? A(t) = Questions 2 f(x(t)), 11 (inverse), 20 stretch/shift, 26 g(f(x)), 15 (inverse) Symmetry: #36

6. Calculus Ch.1 Homework due online this Thus: Calc 1 HW 1 Ch.1.1 # 4, 14, 30, 36 Ch.1.2 # 8, 18, 32, 36 Ch.1.3 # 2, 11, 20, 26 To access these, click Calc HW on our Schedule webpage. Discuss –Shorten assignments, stretch syllabus? –Teamwork on homework –Qualitative reasoning center

7. Energy 2: Energy Resources Cumulative production vs time When is production rate increasing most rapidly? a, b, or c When does production rate peak? a, b, or c

8. Production rate vs time When is production rate increasing most rapidly? a, b, or c When does production rate peak? a, b, or c When does production rate start to decline? a, b, or c At what time was the most total (cumulative) oil produced? a, b, or c

9. Production rate P = production/time = dQ/dt Cumulative production Q = area under the production rate curve P

10. Discuss Energy Ch.2 Key points? Insights from team discussion? Questions? -questions of fact: Can we find answer in the text? What page? -Outstanding questions of fact -Outstanding significant questions

11. Measuring energy use on campus Sustainability indicators website Interested in analyzing these for your research project? Rich Davis, PE, is the campus engineer Patty VanDeWalker measures electricity, water, steam Let’s tour the tunnels! Next Tuesday at 3:30?

12. Looking ahead Seminar in Sem II C2109 tonight – better room Please put your team’s best Q on the board before 5:00 Tomorrow: research workshops in class and Library –Goals: to explore topics and questions, learn search tech. –Assignment: read Research webpage before class tomorrow –New: research ideas & resources from solar homes tour Thursday Physics – let’s do heat (Ch.18) instead of motion (Ch.2), as the latter has only a couple of concepts that are required for energy. Essays – write on your research for weeks 2, 4, 7, 9