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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?J|,(n ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 8JV6*J 4w A positively charged glass rod attracts object X. uq] The net charge of object X C (1) may be zero or negative RQR0 (2) may be zero or positive %c6 (3) must be negative 1U (4) must be positiveNhd?^ ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS E#lK5: The potential energy stored in a compressed YEX spring is to the change in the spring’s length as the A kinetic energy of a moving body is to the body’s HT (1) speed (3) radius xK< (2) mass (4) acceleration G%[=B ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS R`6 What is the resistance at 20.°C of a 2.0-meter Jfo0[ length of tungsten wire with a cross-sectional +'x;lO area of 7.9 × 10–7 meter2? (#> (1) 5.7 × 10–1 Ω (3) 7.1 × 10–2 Ω -t (2) 1.4 × 10–1 Ω (4) 4.0 × 10–2 Ω pV1"a ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS [ga9SY What is the speed of a ray of light E (f = 5.09 × 1014 hertz) traveling through a block Rq@3 of sodium chloride? 3 (1) 1.54 × 108 m/s (3) 3.00 × 108 m/s ZnYeH (2) 1.95 × 108 m/s (4) 4.62 × 108 m/s RZ1 ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 7 Two waves traveling in the same medium and %P]44 having the same wavelength (λ) interfere to E"=Xm create a standing wave. What is the distance vQrLM between two consecutive nodes on this standing s2@ wave? 3Iz{n ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS |/B A tritium nucleus is formed by combining two l5O neutrons and a proton. The mass of this nucleus = is 9.106 × 10–3 universal mass unit less than the + combined mass of the particles from which it is #EeN formed. Approximately how much energy is B]y] released when this nucleus is formed? "}|bJO (1) 8.48 × 10–2 MeV (3) 8.48 Mev <b ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS {lw Pieces of aluminum, copper, gold, and silver <{! wire each have the same length and the same B(_0 cross-sectional area. Which wire has the lowest i& resistance at 20°C? Cihm~ (1) aluminum (3) gold XHbi- (2) copper (4) silver8h=wg{ ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS #4q A lithium atom consists of 3 protons, 4 neutrons, MQ~9p and 3 electrons. This atom contains a total of t@A+ (1) 9 quarks and 7 leptons 4;{4 (2) 12 quarks and 6 leptons 2. (3) 14 quarks and 3 leptons s5 (4) 21 quarks and 3 leptons `4X~> ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS c If a proton were to combine with an antiproton, \{z they would annihilate each other and become (wrZ*- energy. Calculate the amount of energy that ?)b! would be released by this annihilation. ;6<mQ ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS dKz>@ The magnitude of the force the Sun exerts on Uranus is 1.41 × 1021 newtons. Explain how it is possible for RB\%? the Sun to exert a greater force on Uranus than Neptune exerts on Uranus. nBX ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS vt(: What fundamental force holds quarks together IPmg to form particles such as protons and neutrons? Ye (1) electromagnetic force )B%ce (2) gravitational force C (3) strong force tZ<b (4) weak force W7n6 ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS ZB=n What is the magnitude of the force needed to keep a 60.-newton rubber block moving across level, dry {u\`yz asphalt in a straight line at a constant speed of 2.0 meters per second? j (1) 40. N (3) 60. N C[8 (2) 51 N (4) 120 N uV ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS }!A What is the wavelength of a light ray with frequency 5.09 × 1014 hertz as it travels through Lucite? f~~aF* (1) 3.93 × 10–7 m (3) 3.39 × 1014 m _ (2) 5.89 × 10–7 m (4) 7.64 × 1014 m n ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS 6;: ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS rW (2) 2.73 MeV (4) 273 MeVng<4& T ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS qa{qHu ©樱花大战--浪漫樱姿BBS -- 樱花大战--浪漫樱姿BBS $Lo+Dm 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。L
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