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啥也不说了，把这些东西翻成中文我也未必能做上来一道，各位会做么？^
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u
A positively charged glass rod attracts object X. 5
The net charge of object X 7
(1) may be zero or negative /64
(2) may be zero or positive jg
(3) must be negative Pjr
(4) must be positiveEO
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS .ZzF|
The potential energy stored in a compressed 2y&
spring is to the change in the spring’s length as the g1/\
kinetic energy of a moving body is to the body’s i>
(1) speed (3) radius 8v(.
(2) mass (4) acceleration {
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS k:II>m
What is the resistance at 20.°C of a 2.0-meter 1k
length of tungsten wire with a cross-sectional e
area of 7.9 × 10–7 meter2? 0pB
(1) 5.7 × 10–1 Ω (3) 7.1 × 10–2 Ω %:h(
(2) 1.4 × 10–1 Ω (4) 4.0 × 10–2 Ω '
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS ^
What is the speed of a ray of light 3TV01
(f = 5.09 × 1014 hertz) traveling through a block ~c/|
of sodium chloride? TaebbI
(1) 1.54 × 108 m/s (3) 3.00 × 108 m/s &&+F3
(2) 1.95 × 108 m/s (4) 4.62 × 108 m/s =C2!I
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS f76)
Two waves traveling in the same medium and -
having the same wavelength (λ) interfere to @2BgD2
create a standing wave. What is the distance u
between two consecutive nodes on this standing & g}I
wave? ~K
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS U8j&U
A tritium nucleus is formed by combining two g#p:
neutrons and a proton. The mass of this nucleus L3zm
is 9.106 × 10–3 universal mass unit less than the Q5)
combined mass of the particles from which it is KYgZ/(
formed. Approximately how much energy is F$1
released when this nucleus is formed? zgsKV@
(1) 8.48 × 10–2 MeV (3) 8.48 Mev %o
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS ?
Pieces of aluminum, copper, gold, and silver rI$RN3
wire each have the same length and the same |tNVm
cross-sectional area. Which wire has the lowest /|@C'I
resistance at 20°C? #+uI"
(1) aluminum (3) gold E<:y}k
(2) copper (4) silver[
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS i=
A lithium atom consists of 3 protons, 4 neutrons, }
and 3 electrons. This atom contains a total of Z\{[Wf
(1) 9 quarks and 7 leptons -Y-
(2) 12 quarks and 6 leptons r'=|
(3) 14 quarks and 3 leptons y4
(4) 21 quarks and 3 leptons ?k42ME
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 8"<
If a proton were to combine with an antiproton, :
they would annihilate each other and become (P
energy. Calculate the amount of energy that TZ_
would be released by this annihilation. LTVwzo
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS Rg`2
The magnitude of the force the Sun exerts on Uranus is 1.41 × 1021 newtons. Explain how it is possible for Gh
the Sun to exert a greater force on Uranus than Neptune exerts on Uranus. 5B
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS #_
What fundamental force holds quarks together &@9aq/
to form particles such as protons and neutrons? z<M
(1) electromagnetic force Q
(2) gravitational force 'I<k
(3) strong force t
(4) weak force b9YqYK
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS f/E0Y:
What is the magnitude of the force needed to keep a 60.-newton rubber block moving across level, dry $.9Esa
asphalt in a straight line at a constant speed of 2.0 meters per second? 1ad+<
(1) 40. N (3) 60. N #
(2) 51 N (4) 120 N j@
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS k|y
What is the wavelength of a light ray with frequency 5.09 × 1014 hertz as it travels through Lucite? #a
(1) 3.93 × 10–7 m (3) 3.39 × 1014 m B
(2) 5.89 × 10–7 m (4) 7.64 × 1014 m hX5yWu
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©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS n4Jf
(2) 2.73 MeV (4) 273 MeVEbD<S
H%
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©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS U,
ps：答案baidu上有，如果哪位真的有雅兴清搜索“英语物理题”查查看。最后，千万表告诉我这些题真的有人会做，来这里灌水的话请随便。;<1HME
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2007/08/29 02:33pm 
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