Known Errors in the First Printing of Unit
N, 1/e
NOTE:
In all that follows I will use <letter name> to
represent a Greek-letter variable, ^ to indicate that the next
quantity is superscripted, _ to indicate that the next quantity is
subscripted, and boldface to indicate a vector quantity. I will also
go against typographical convention and put punctuation
outside of quotation marks to make whatever is enclosed in
quotes exactly reflect what is (or should be) in the text.
- page ix, item 5, second line: omit "a" between "require" and
"substantial".
- page x, sixth line: omit "a" between "with" and "day-by-day".
- page xii, first line of second paragraph: add "to" between
"was" and "simplify".
- page xvi: added some missing names to section 9.
- page 104, answer to exercise N7X.5: removed the last line
(starting with "Taking the square root...").
- page 126, free body diagram (middle of the page on the right
side): the downward arrow should be labeled as being a
gravitational force (F_g with an arrow over).
- page 129: added missing sidebars.
- page 130: added missing sidebars.
- page 130, line just above equation N9.25, third to last word:
should be "angle" not "phase".
- page 133, problem N9B.2, last line: the 2 in "m/s2" should be
a superscript.
- page 134, answer to exercise N9X.4, first line: "If the object
is moving clockwise..." not counterclockwise.
- page 148, problem N10R.2, the last phrase of the hint: "where
<theta> is phase and <theta> is very
small" should read "if <theta> is measured in radians
and <theta> << 1".
- page 159, summary, item II.B, second line, first equation:
gt should be positive not negative.
- page 159, summary, item III.A.3: parenthesis and space
following "plane" should be reversed.
- page 159, summary, item V.B.2: v_T =
[2mg/C<rho>A]^1/2 instead of
[C<rho>A/2mg]^1/2.
- page 160, definition for "terminal speed", sixth line:
v_T = [2mg/C<rho>A]^1/2 instead of
[C<rho>A/2mg]^1/2. Also the isolated r should
be a <rho>.
- page 166, third-to-last paragraph, next-to-last line: the
isolated q should be a <theta>.
- page 170, third line below equation N12.22: "phase
<theta>" should be "phase constant
<theta>".
- page 173, summary, item II.A.1: replaced "for
object-on-a-spring (units of s^&endash;1)" with "= phase
rate (units of rad/s = s^&endash;1)".
- page 174, glossary: definition of "phase rate" rewritten for
clarity.
- page 184, paragraph after equation N13.16: replaced "doesn't
have to orbit quite as fast to provide the acceleration to match
the reduced force" with "must move a bit more slowly if its
acceleration is to match the reduced force".
- page 196, paragraph below exercise N14X.7: replaced "phase"
with "angle" (3 times).
- page 197, second line below equation N14.21: made r italic and
replaced "phase" with "angle" (2 times).
- page 203, summary, item I.A.2: beginning should read
"<theta> is the angle that the line".
- page 203, summary, item I.B: the e at the end should be
<epsilon>.
- page 204, glossary, "conic section", fourth line: q should be
<theta>, and "phase for the" and the capital Q should
be deleted.
- page 204, glossary, "hyperbola", second line: replaced
"phases" with "angles".
- page 204, problem N14T.1, first line: inserted comma after
"text" and made the following A lower-case.
- page 204, problem N14T.2, second line: units of 2E/m
should be m^2/s^2, not m^3/s^2.
- page 204, problem N14T.4, first word: "An" should be "A".
- page 204, problem N14B.1: "velocity" should be "speed" (2
times) and "radians/hr" should be "radians/h".
- page 205, problem N14S.13, last word in second line: should be
"angular" not "phase".
- a number of other cosmetic corrections (including setting some
variable names correctly in italics).
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