Fall wk 2 Mon'4'Oct'04

1
Fall wk 2 Mon.4.Oct.04

• Welcome, roll, questions
• Revisit Calculus from last Thursday
• break
• Energy Ch.2
• 330 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 doesnt work for you yet, hand in paper
  homework for now.

4
Calculus 1.2 Exponential fxns

• 32 Nicaraguas inflation rate 1.3 per day
• P(t) P0 at
• 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) P0 et 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) 1t (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
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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
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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
• Lets tour the tunnels! Next Tuesday at 330?

12
Looking ahead

• Seminar in Sem II C2109 tonight better room
• Please put your teams best Q on the board before
  500
• 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 lets 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