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The operational amplifier (hereafter OP-AMP)is developed in the 1940s primarily for use in analog computers, made cheaply and readily available in the late 1960s through integrated-circuit technology. The actual construction of a modern OP-AMP is indeed very complex, involving many transistors, diodes, resistors and capacitors
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外研版(三起)(2012)小学英语三年级下册Module 10 Unit 2 She's got an orange sweater.课件(7)
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外研版(三起)(2012)小学英语三年级下册Module 7 Unit 2 It's warm today.教案(1)
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ad prep.(后+acc.)到近于 albus,adj.A.白色的 alternatius,adj.A.互生的 annus,ad.a.一年生的 anthera,s.f.I.花药 arbor,s.f.II.乔木树木 aureus,adj.a.金黄色的
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Intensive Study There's a Lot More to Life than a Job Para.1 It has often been remarked that the saddest thing about youth is that it is wasted on the young. Para. 2 Reading a survey report on first-year college students, I recalled the regret, \If only knew then what know now
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equipment and supavision by appropriate individuak You bear the sol responsibility, liability, and risk for the implemcntation of such safety procedures a ares. MIT shall have no responsibility, liability, risk for the content or implementation of of the mat
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When the only force acting on a particle is always directed to- wards a fixed point, the motion is called central force motion. This type of motion is particularly relevant when studying the orbital movement of planets and satellites. The laws which gov- ern this motion were first postulated by Kepler and deduced from observation. In this lecture, we will see that these laws are a con- sequence of Newton's second law. An understanding of central
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In this lecture we will look at some applications of Newton's second law, expressed in the different coordinate systems that were introduced in lectures D3-D5. Recall that Newton's second law F=ma, (1) is a vector equation which is valid for inertial observers. In general, we will be interested in determining the motion of a particle given
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In this course we will study Classical Mechanics. Particle motion in Classical Mechanics is governed by Newton's laws and is sometimes referred to as Newtonian Mechanics. These laws are empirical in that they combine observations from nature and some intuitive concepts. Newton's laws of motion are not self evident. For instance, in Aristotelian mechanics before Newton, force was thought to be required in order
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一、选择题1,B2,3,C 二、填空题1,5.13,0.71,2,(1)O2,600m/s,H2,2400m/s; (2)具有从0到无穷大所有速率氧分子的概率,3(1)分子当作质点,不占体积(2)分子之间除碰撞的瞬间外,无相互作用力。(忽略重力)(3)分子之间碰撞是弹性碰撞(动能不变)
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