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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?QTm'] ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS ,Op}` %LEU{m A positively charged glass rod attracts object X. xB8|t The net charge of object X Z#g} (1) may be zero or negative )`^p[y (2) may be zero or positive Z (3) must be negative ;z (4) must be positive%A*'( ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 2ypt The potential energy stored in a compressed KH spring is to the change in the spring’s length as the ]C!v} kinetic energy of a moving body is to the body’s &b)`h (1) speed (3) radius "Kg; (2) mass (4) acceleration }%Q ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS fbG What is the resistance at 20.°C of a 2.0-meter 0d length of tungsten wire with a cross-sectional \ area of 7.9 × 10–7 meter2? Um.$ (1) 5.7 × 10–1 Ω (3) 7.1 × 10–2 Ω 1r (2) 1.4 × 10–1 Ω (4) 4.0 × 10–2 Ω S> ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS /_Sh5} What is the speed of a ray of light &`bp (f = 5.09 × 1014 hertz) traveling through a block 5NOCLZ of sodium chloride? o^pz (1) 1.54 × 108 m/s (3) 3.00 × 108 m/s v}# (2) 1.95 × 108 m/s (4) 4.62 × 108 m/s j ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS =>LhO Two waves traveling in the same medium and 8 having the same wavelength (λ) interfere to _ create a standing wave. What is the distance .* between two consecutive nodes on this standing k*eSy^ wave? +(Dvg ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS ?Jz A tritium nucleus is formed by combining two jvVg?P neutrons and a proton. The mass of this nucleus sl is 9.106 × 10–3 universal mass unit less than the S combined mass of the particles from which it is V @T; formed. Approximately how much energy is | released when this nucleus is formed? &fb^| (1) 8.48 × 10–2 MeV (3) 8.48 Mev 8)SW3 ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS wnm} Pieces of aluminum, copper, gold, and silver b)d wire each have the same length and the same q" cross-sectional area. Which wire has the lowest ]c resistance at 20°C? J (1) aluminum (3) gold ;Ie?z (2) copper (4) silver= ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS nWhx(] A lithium atom consists of 3 protons, 4 neutrons, / and 3 electrons. This atom contains a total of SK (1) 9 quarks and 7 leptons T= (2) 12 quarks and 6 leptons 6| (3) 14 quarks and 3 leptons u3z (4) 21 quarks and 3 leptons p ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS GrCQ If a proton were to combine with an antiproton, %GT they would annihilate each other and become T energy. Calculate the amount of energy that _Ix# would be released by this annihilation. D ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS \6';S The magnitude of the force the Sun exerts on Uranus is 1.41 × 1021 newtons. Explain how it is possible for oI'A1 the Sun to exert a greater force on Uranus than Neptune exerts on Uranus. p ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS HV{ What fundamental force holds quarks together jz7y to form particles such as protons and neutrons? %9qMc` (1) electromagnetic force @.Y (2) gravitational force 4p,3, (3) strong force ?EfYG, (4) weak force g ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 5kY ] What is the magnitude of the force needed to keep a 60.-newton rubber block moving across level, dry R$ asphalt in a straight line at a constant speed of 2.0 meters per second? :92AOP (1) 40. N (3) 60. N t=i2 (2) 51 N (4) 120 N kb6 ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS Hl What is the wavelength of a light ray with frequency 5.09 × 1014 hertz as it travels through Lucite? tH-s (1) 3.93 × 10–7 m (3) 3.39 × 1014 m id~Z (2) 5.89 × 10–7 m (4) 7.64 × 1014 m &3x[(C ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS ]-1l> ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS y5C;5, (2) 2.73 MeV (4) 273 MeV\ CI-\ ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS nZ ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS Lwb 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。>`
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