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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?g ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS \1B w2Mp> A positively charged glass rod attracts object X. 90<t'3 The net charge of object X 9 (1) may be zero or negative (2) may be zero or positive =vy&L_ (3) must be negative JgDlE (4) must be positiveKE ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS tn4^ The potential energy stored in a compressed u\ spring is to the change in the spring’s length as the BeX9C kinetic energy of a moving body is to the body’s p\w3I (1) speed (3) radius Ouy_"Z (2) mass (4) acceleration }O3$ ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS R What is the resistance at 20.°C of a 2.0-meter QI/|W length of tungsten wire with a cross-sectional r area of 7.9 × 10–7 meter2? qE (1) 5.7 × 10–1 Ω (3) 7.1 × 10–2 Ω K (2) 1.4 × 10–1 Ω (4) 4.0 × 10–2 Ω y1I ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS #AV What is the speed of a ray of light t (f = 5.09 × 1014 hertz) traveling through a block z=RUO& of sodium chloride? pAR_c (1) 1.54 × 108 m/s (3) 3.00 × 108 m/s d (2) 1.95 × 108 m/s (4) 4.62 × 108 m/s Q)I$rc ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS whj-U Two waves traveling in the same medium and .AG 6] having the same wavelength (λ) interfere to c"E create a standing wave. What is the distance "H between two consecutive nodes on this standing b%`n5 wave? gq|33a ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS /' A tritium nucleus is formed by combining two GY neutrons and a proton. The mass of this nucleus [ is 9.106 × 10–3 universal mass unit less than the /q32 combined mass of the particles from which it is R/%: formed. Approximately how much energy is liZ released when this nucleus is formed? 6[Y (1) 8.48 × 10–2 MeV (3) 8.48 Mev K_{v ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS s]w_b Pieces of aluminum, copper, gold, and silver 7*} wire each have the same length and the same el1 cross-sectional area. Which wire has the lowest *r| resistance at 20°C? , yJP (1) aluminum (3) gold m^K# (2) copper (4) silver!SZ ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS h A lithium atom consists of 3 protons, 4 neutrons, F and 3 electrons. This atom contains a total of _HU (1) 9 quarks and 7 leptons cf08yw (2) 12 quarks and 6 leptons T*g+ (3) 14 quarks and 3 leptons o{K\f (4) 21 quarks and 3 leptons ij ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 1=%X If a proton were to combine with an antiproton, qB~[e they would annihilate each other and become ~F@!n} energy. Calculate the amount of energy that 8=EI would be released by this annihilation. '/) ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 'Ve& The magnitude of the force the Sun exerts on Uranus is 1.41 × 1021 newtons. Explain how it is possible for uC the Sun to exert a greater force on Uranus than Neptune exerts on Uranus. zS ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS `Mh[Pk What fundamental force holds quarks together 8M(A to form particles such as protons and neutrons? U:>)R (1) electromagnetic force 92l (2) gravitational force cL8-A` (3) strong force d (4) weak force )Xv~ ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS @ePB, What is the magnitude of the force needed to keep a 60.-newton rubber block moving across level, dry ,F8" asphalt in a straight line at a constant speed of 2.0 meters per second? -rSH1 (1) 40. N (3) 60. N fV: (2) 51 N (4) 120 N 'Sf# ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS .lzi What is the wavelength of a light ray with frequency 5.09 × 1014 hertz as it travels through Lucite? LdJw7 (1) 3.93 × 10–7 m (3) 3.39 × 1014 m ! (2) 5.89 × 10–7 m (4) 7.64 × 1014 m 0D ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 1Sl ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 35+XEw (2) 2.73 MeV (4) 273 MeVc` 1mp}2 ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 8d ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS f+[:6j 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。qO5^I
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