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习题练习:Momentum and Energy



 作者: admin发布日期: 2024-08-05 18:30   总分: 9分  得分: _____________

答题人: 匿名未登录  开始时间: 24年08月05日 18:30  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.22: One implication of Einstein's theories is thaj swd48:qq(bb+ 8dbcpe9,y.br zaq k//q,nsjt

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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.35: A scientist claims to have perfected yjnd +b-c0b i-a technique in which he can spontaneously convert an electron compldbiby 0-c-+ jnetely into energy in the laboratory without any other material required. What is the conclusion about this claim from our current understanding of physics?

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.45: Electron #1 moves with speed 0.30 c where c is*,ik.bk c:k0hvyg p(sj/ xcv 4syc9; t the speed of light. Electron #2 moves with speed 0.60 c. What is the ratioc4ct *gkx0/9ik.y(y:vj;,vss c kpbh of the kinetic energy of electron #2 to electron #1?

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.50: What is the magnitude of the linear momentum (in units of kg.m/sol -)vp3ib0gg7iym v0) of an elo -3bglg7 mv v)0p0yiiectron moving in a straight line if it has $3.2\times\:10^{−13}J$ of kinetic energy?

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.49: Two electrons move with the magnitude of their linear momentum havi :8nwli8t ( yj5wkygw.ng a ratio of 2:1. If the sly5twlww:kg(y.n 8i8jower electron moves with a speed of $1. 20\times\:10^8\:m/s$, what is the speed of the faster moving electron (in unit of m/s)?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.49: The kinetic energy associated with ank9g. w4 dzajmq9vw,z -kebj*( electron is twice its rest energy. At what speed is the electdj,mq9.jz-kw z evkba4*w9g(ron traveling(in unit of m/s)?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  18.49: A particle has a total energy of 500 MeV and a linear momentum of 3npyo) e)bq a dvbj51nfk208/n00 $\frac{MeV}{c}$. What is the mass of the particle?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.50: An object of mass m is initially at rest. After this object kcq) 1y (5g xtn2:btvdis accelerated t5 )v2ktbndt1 :q(xgyc o a speed of $2.4\times\:10^8\:m/s$ , it collides with and sticks to a second object of mass m at rest. Immediately after
the collision, what is the common speed of the two masses (in unit of m/s)?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.49: Two identical particles travel to theygu-5 +xd1 d j2vqpmiqi /qf;1 right. The particle traveling at $2.4\times\:10^8\:m/s$ collides with and sticks to the other particle traveling at $1.8\times\:10^8\:m/s$. Which one of the following choices best represents the speed of the resulting object after collision(in unit of m/s)?

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