Re: [問題] 93上 林敏聰 普通物理學
※ 引述《Morphee (千磨萬擊還堅勁)》之銘言：
: 課程名稱︰普通物理學
: 課程性質︰
: 課程教師︰林敏聰
: 開課系所︰電機系
: 考試時間︰2004.11.11
: 試題 :
: 1.please write down and derive the "equivalent" expression of Newton's second
: law in both translational and angular forms. What are the assumption for
: their application in classic mechanics? Are those "equivalent" forms really
: equivalent? Why?(15%)
: 2.Two particles,each of mass m and speed v,travel in opposite directions along
: parallel lines separated by distance d.(a)In terms of m,v,and d find an
: expression for magnitude L of angular momentum of the two-particles system
: around a point midway between the two lines.(b)Does the expression change if
: we change the point about which L is calculated?(c)Now reverse the direction
: of travel for one of the particles and repeat(a)and (b).(15%)
: 3.Please prove the parallel-axis theorem and calculate the rotational inertial
: of body(a),(b),(c) (20%)
: (a) 一圓柱長L 半徑R 參考軸通過圓柱一邊末端的圓心
: (b) Solid sphere 直徑2R 參考軸在 Solid sphere 之表面
: (c) 一長寬l,t的矩形 軸垂直矩形面 在矩形的一個角上
: "這原本應該有圖的"= =||
: 4.Consider a damped simple harmonic motion with the total force sigma F=-kx-bv
: ,where k is force constant of the spring,x the displacement,v the velocity,b
: the damping constant.Please write down and solve the (differential) equation
: of motion from Nentow's Sencond Law.(10%)
: 5.(20%) A small ball with mass m and velocity v moves toward the end of suspend
: -ed rod ,having mass M and length L and sticks to it after collision.
: (a) What is the rotational inertia of the rod about the pivot O?
: (b) What is the angular velocity w after collision?
: (c) Is this collision completely-inelastic? Why or Why not?
: (d) If v small enough,find the osillation frequency of the composite system
: about the pivot.
: 6.(10%) A spring (k=200N/m) is fixed at the top of a frictionless plane which
: is inclined at angle θ=40度.A 1.0 Kg block is projected up the plane,from
: an initial position that is distance d=0.60 m from the end of the relaxed
: spring,with an kinetic energy of 16 J.
: (a) What is the kinetic energy of the block at instant it has compressed the
: spring 0.2m?
: (b) With what kinetic energy must the block be projected up the plane if it
: is to stop momentarily when it has compressed the spring by 0.4m?
: 7.(10%) Block 1 of mass m1 slides from rest along a frictionless ramp from
: height h=2.50m and then collides with stationary block 2,which has mass m2=
: 2.00m1.After the collision,block2 slides into a region where the coefficient
: of kinetic friction μk is 0.500 and comes to a stop in distance d within
: that region.What is the value of the distance d if the collision is
: (a) elastic and (b)completely inelastic?
: 8.Good luck!!!!
林敏聰耶..我大一給他教的
他筆記漫不賴的唷
不過重點放在熱力學,電磁學,近物~~
其他都只是帶過
晚點我貼其他年度的
解答懶的打....@@
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