英语翻译1.A bullet of mass m = 0.01 kg is fired into a ballistic

英语翻译
1.A bullet of mass m = 0.01 kg is fired into a ballistic pendulum of mass M = 2.0 kg as shown in Figure 1.The bullet remains in the block after the collision and the whole system rises to a maximum height of h = 8 cm.What is the bullet’s initial speed?
2.Two rods of equal lengths and cross-sectional areas but of different materials are placed in thermal contact as shown in Figure 2.The thermal conductivity of Q Figure 2
is half that of P.The outer end of P
is at 0o C and that of Q is at 100°C.
What is the temperature of the interface at steady state?
A 40 g ice cube at 0°C is added to 200 g of water at 20°C.Calculate the final equilibrium temperature,assuming no other agents for heat exchange are present.The specific heat of ice is 2310 J kg-1 °C-1,and that of water is 4200 J kg-1 °C-1 and the specific latent heat of melting of ice is 3.36 ´ 105 J kg-1.
In two experiments with a continuous flow calorimeter to determine the specific heat capacity of a liquid,an input power of 60 W produced a rise of 10 K in the liquid.When the power was doubled,the same temperature rise was achieved by making the rate of flow of liquid three times faster.The power lost to the surroundings in each case was
Double-slit interference is investigated using light of wavelength 600 nm.The fringe spacing is 1.44 mm.If the screen is 1.2 m away from the slits,how far apart are the slits?
6.A loudspeaker which emits sound of frequency 1000 Hz is placed several metres from a plane reflecting wall in a large chamber containing a gas.A microphone M,connected to a cathode ray oscilloscope,detects a series of low and high intensity signals as it moves along the line joining the loudspeaker B and the wall.
A small-amplitude progressive wave in a stretched string has a velocity of 10 m s-1 and a frequency of 100 Hz.What is the phase difference,in radians,between two points 2.5 cm apart in the string?
A uniform wire is made of material with resistivity r.It has a length of and its diameter is d.When a constant current I flows through the wire,what is the rate at which heat is generated in the wire?
the circuit shown in Figure 4,the power which is dissipated as heat in the 6-W resistor is 6 W.
南大的物理样题

有点搞笑
1 .一颗子弹的质量为m = 0.01公斤的弹道导弹发射摆的质量为m =二点零公斤如图1所示.子弹留在块碰撞后,整个系统上升到最大高度的H = 8厘米.什么是子弹的初始速度?
2 .两杆的长度和平等横断面地区,但不同的材料都放在热联系如图2所示.导热系数的Q图2
是的一半,体育,外端的P
在0o C和说的Q是在100 ℃
什么是温度接口稳态?
阿40政冰块在0 ° C添加到200克的水,20 °角计算的最后平衡温度,假设没有其他代理人的热交换存在.比热的冰是2310年J公斤- 1 °的C - 1 ,而水是4200公斤J - 1 °的C - 1和具体潜热融化的冰是3.36 ' 105 J kg - 1组.
在两个试验源源不断热量计,以确定具体的热容量的液体,输入功率为60 W生产上升了10 K的液体.当功率增加了一倍,同样的温度上升,从而取得了流速的液体快三倍.权力失去环境在每一种情况下是
双缝干涉是调查利用光的波长600纳米.条纹间距一点四四毫米.如果屏幕1.2米以外的罅隙,如何遥远的缝?
6 .该扬声器发出的声音频率1000赫兹放在几米从飞机反映墙在一个大型会议厅载有天然气.麦克风男,连接到阴极射线示波器,检测了一系列的低和高强度的信号,因为它沿着线加入扬声器B和隔离墙.
一个小幅度逐步波加长字符串的速度10米的S - 1和一个频率为100赫兹.什么是相位差,弧度,两点之间相距2.5厘米的字符串?
统一丝材料制成的电阻河它的长度,其直径为4当恒流我流经线,什么是速度,热量产生的电线?
电路如图4所示,这是权力的热量散失在6钨电阻6总统