대학물리학 솔루션 (JEWETT & SERWAY)

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대학물리학 솔루션 (JEWETT & SERWAY)에 대한 보고서 자료입니다.

목차

SM_PDF_chapter1.pdf ―――――― 22
SM_PDF_chapter2.pdf ―――――― 28
SM_PDF_chapter3.pdf ―――――― 32
SM_PDF_chapter4.pdf ―――――― 30
SM_PDF_chapter5.pdf ―――――― 30
SM_PDF_chapter6.pdf ―――――― 22
SM_PDF_chapter7.pdf ―――――― 34
SM_PDF_chapter8.pdf ―――――― 30
SM_PDF_chapter9.pdf ―――――― 28
SM_PDF_chapter10.pdf ――――― 40
SM_PDF_chapter11.pdf ――――― 34
SM_PDF_chapter12.pdf ――――― 30
SM_PDF_chapter13.pdf ――――― 20
SM_PDF_chapter14.pdf ――――― 26
SM_PDF_chapter15.pdf ――――― 30
SM_PDF_chapter16.pdf ――――― 24
SM_PDF_chapter17.pdf ――――― 30
SM_PDF_chapter18.pdf ――――― 28

본문내용

ANSWERS TO QUESTIONS

Q1.1 Atomic clocks are based on electromagnetic waves which atoms emit.
Also, pulsars are highly regular astronomical clocks.
Q1.2 Density varies with temperature and pressure. It would be necessary
to measure both mass and volume very accurately in order to use the
density of water as a standard.
Q1.3 (a) 0.3 millimeters (b) 50 microseconds (c) 7.2 kilograms
Q1.4 (b) and (d). You cannot add or subtract quantities of different dimension.
Q1.5 A dimensionally correct equation need not be true. Example: 1 chimpanzee = 2 chimpanzee is
dimensionally correct. If an equation is not dimensionally correct, it cannot be correct.
Q1.6 On February 7, 2005, I am 59 years and 39 days old


59yr ( 1yr / 365.25d ) + 39d = 21.589d( 86400s / 1d ) = 1.87 x 10 9 s~ 10 9 s

Many college students are just approaching 1 Gs.
Q1.7 Zero significant digits. An order-of-magnitude calculation is accurate only within a factor of 10.
Q1.8 With one datum known to one significant digit, we have 80 million yr + 24 yr = 80 million yr.
Q1.9 No, the magnitude of the displacement is always less than or equal to the distance traveled. If two
displacements in the same direction are added, then the magnitude of their sum will be equal to the
distance traveled. Two vectors in any other orientation will give a displacement less than the
distance traveled. If you first walk 3 meters east, and then 4 meters south, you will have walked a
total distance of 7 meters, but you will only be 5 meters from your starting point.
Q1.10 Only force and velocity are vectors. None of the other quantities requires a direction to be described.
Q1.11 If the direction-angle of
rA
is between 180 degrees and 270 degrees, its components are both
negative. If a vector is in the second quadrant or the fourth quadrant, its components have opposite
signs.
Q1.12 The book’s displacement is zero, as it ends up at the point from which it started. The distance
traveled is 6.0 meters.
Q1.13 85 miles. The magnitude of the displacement is the distance from the starting point, the 260-mile
mark, to the ending point, the 175-mile mark.
Q1.14 Vectors
rA
and
rB
are perpendicular to each other.
Q1.15 No, the magnitude of a vector is always positive. A minus sign in a vector only indicates direction,
not magnitude.
Q1.16 Any vector that points along a line at 45° to the x and y axes has components equal in magnitude.
Q1.17 Addition of a vector to a scalar is not defined. Think of apples and oranges.
Q1.18 If the direction of a vector is specified by giving the angle of the vector measured clockwise from the
positive y-axis, then the x-component of the vector is equal to the sine of the angle multiplied by the
magnitude of the vector.
Q1.19 (a) Rotation does not noticeably affect revolution: simplification.
(b) Geometric (c) Structural (d) Simplification




≪ … 중 략 … ≫




Q17.1 Temperature is a measure of molecular motion. Heat is energy in the
process of being transferred between objects by random molecular
collisions. Internal energy is an object’s energy of random molecular
motion and molecular interaction.
Q17.2 The ΔT is twice as great in the ethyl alcohol.
Q17.3 The final equilibrium temperature will show no significant increase
over the initial temperature of the water.
Q17.4 Some water may boil away. You would have to very precisely
measure how much, and very quickly measure the temperature of
the steam; it is not necessarily 100°C.
Q17.5 Heat is energy being transferred, not energy contained in an object. Further, a large-mass object, or
an object made of a material with high specific heat, can contain more internal energy than a highertemperature
object.

키워드

대학물리학,   물리학,   일반 물리학 ,   솔루션,   물리