Fall wk 2 – Mon.4.Oct.04
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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
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
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.
Calculus 1.2: Exponential fxns
#32 Nicaragua’s 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?
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
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
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Shorten assignments, stretch syllabus?
Teamwork on homework
Qualitative reasoning center
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
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
Production rate P = production/time = dQ/dt
Cumulative production Q = area under the
production rate curve P
Discuss Energy Ch.2
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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
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?
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