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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？8|6o
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS k}K9u
a
A positively charged glass rod attracts object X. 1
The net charge of object X L[
(1) may be zero or negative =
(2) may be zero or positive $/x*Y
(3) must be negative 0
(4) must be positivek0Yg?
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS GN.
The potential energy stored in a compressed gw_,/O
spring is to the change in the spring’s length as the &W3c
kinetic energy of a moving body is to the body’s E?.bB
(1) speed (3) radius r4,Yd
(2) mass (4) acceleration xE1}
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS s+4Sh
What is the resistance at 20.°C of a 2.0-meter 2d7Z#
length of tungsten wire with a cross-sectional .n4
area of 7.9 × 10–7 meter2? XXLRF
(1) 5.7 × 10–1 Ω (3) 7.1 × 10–2 Ω !A
(2) 1.4 × 10–1 Ω (4) 4.0 × 10–2 Ω E\O$sS
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS l;Q
What is the speed of a ray of light =jFm0W
(f = 5.09 × 1014 hertz) traveling through a block 3o9
of sodium chloride? ^HVPwT
(1) 1.54 × 108 m/s (3) 3.00 × 108 m/s LP?({
(2) 1.95 × 108 m/s (4) 4.62 × 108 m/s _[
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS c
Two waves traveling in the same medium and rnu
having the same wavelength (λ) interfere to 5A*
create a standing wave. What is the distance p7I<D!
between two consecutive nodes on this standing p.uhB
wave? [
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS <wJJ
A tritium nucleus is formed by combining two |$)O
neutrons and a proton. The mass of this nucleus va,O8L
is 9.106 × 10–3 universal mass unit less than the HYtY+
combined mass of the particles from which it is Q9UA/
formed. Approximately how much energy is *.m,.n
released when this nucleus is formed? SpKX>g
(1) 8.48 × 10–2 MeV (3) 8.48 Mev A8I
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS s{%Gc
Pieces of aluminum, copper, gold, and silver ]F'
wire each have the same length and the same VT
cross-sectional area. Which wire has the lowest N2d
resistance at 20°C? %
(1) aluminum (3) gold !Qyvz8
(2) copper (4) silverI<jSt
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS @
A lithium atom consists of 3 protons, 4 neutrons, ]o<o[u
and 3 electrons. This atom contains a total of u[{X
(1) 9 quarks and 7 leptons KU1K
(2) 12 quarks and 6 leptons =\?s
(3) 14 quarks and 3 leptons Q
(4) 21 quarks and 3 leptons YEM\L1
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS W
If a proton were to combine with an antiproton, z4qaU:
they would annihilate each other and become *Ix,]
energy. Calculate the amount of energy that 2~i-`
would be released by this annihilation. 3
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS ?
The magnitude of the force the Sun exerts on Uranus is 1.41 × 1021 newtons. Explain how it is possible for Rcg:iM
the Sun to exert a greater force on Uranus than Neptune exerts on Uranus. 3R0QVE
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 9Y
What fundamental force holds quarks together 2u]
to form particles such as protons and neutrons? 9n
(1) electromagnetic force qj
(2) gravitational force $
(3) strong force UU^&
(4) weak force cfS)Gq
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS v$
What is the magnitude of the force needed to keep a 60.-newton rubber block moving across level, dry MGa),a
asphalt in a straight line at a constant speed of 2.0 meters per second? m
(1) 40. N (3) 60. N f%Mp
(2) 51 N (4) 120 N ?{p>
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS u5
What is the wavelength of a light ray with frequency 5.09 × 1014 hertz as it travels through Lucite? \7Kz!o
(1) 3.93 × 10–7 m (3) 3.39 × 1014 m z
(2) 5.89 × 10–7 m (4) 7.64 × 1014 m nV
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS "z
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS n-RD!
(2) 2.73 MeV (4) 273 MeV=:+Exs
;
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS Pc2ek
©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS Hq4'
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。?25
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2007/08/29 02:33pm 
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