2009级大学物理试卷(第一学期)A

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1、暨南大学大学物理试卷 考生姓名、学号：暨 南 大 学 考 试 试 卷教师填写2009- 2010 学年度第_一_学期课程名称：_大学物理_授课教师姓名：_黄波_ 考试时间:_2010_年_1_月_19_日课程类别必修 选修 考试方式开卷 闭卷 试卷类别(A、B) A 共 页考生填写 学院(校) 专业 班(级)姓名 学号 内招 外招 题 号一二三四五六七八九十总 分得 分得分评阅人一、基础知识题（共4小题，每小题9分，共36分）1、A rectangular parallelepiped has dimensions a, b, and c, as in Figure 1. (a) Obtain

2、 a vector expression for the face diagonal vector R1. (b) Obtain a vector expression for the body diagonal vector R2. Use vectors to compute the angle between R1 and R2 (=?).Figure 1.2、A particle starts from rest and accelerates as shown in Figure 2. Determine (a) the particles speed at t =10.0 s an

3、d at t =20.s,and (b) the distance traveled in the rst 20.0s.Figure 2.Figure 2.3、 A bar of gold is in thermal contact with a bar of silver of the same length and area (Figure 3). One end of the compound bar is maintained at 80.0 while the opposite end is at 30.0. When the energy transfer reaches stea

4、dy state, what is the temperature at the junction? （The thermal conductivities of gold and silver are 314 W/(m) and 427 W/(m), respectively）Figure 3.4、What horizontal force must be applied to the cart shown in Figure 4 in order that the blocks remain stationary relative to the cart? Assume all surfa

5、ces, wheels, and pulley are frictionless. Figure 4.得分评阅人二、计算题（共3小题，共40分）5、A sample of ideal gas is expanded to twice its original volume of 1.00 m3 in a quasi static process for which P=aV2 , with a=5.00 atm/m6, as shown in Figure 5. How much work is done on the expanding gas? （13分）Figure 5.6、Two bl