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6.055J / 2.038J The Art of Approximation in Science and Engineering
Spring 2008
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Homework 4
Do the following warmups and problems. Due in class on
Friday, 04 Apr 2008
.
Open universe:
Collaboration, notes, and other sources of information are
encouraged.
However, avoid
looking up answers until you solve the problem (or have tried hard). That policy helps you learn the most
from the problems.
Bring a photocopy to class on the due date
, trade it for a solution set, and ﬁgure out or ask me about
any confusing points. Your work will be graded lightly: P (made a reasonable effort), D (did not make a
reasonable effort), or F (did not turn in).
Warmups
1. Minimum power
In lecture we estimated the ﬂight speed that minimizes energy consumption. Call that speed
v
E
. We could also have estimated
v
P
, the speed that minimizes power consumption. What is
the ratio
v
P
/
v
E
?
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 Spring '08
 SanjoyMahajan

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