Momentum and Energy - 题库网 (tiku.one)

标记此题

1#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

04.22: One implication of Einstein's thel :mjbfw(h/ b 1u;qlngya5 pe7ph q*30ories is that

A. all energy has mass properties.

B. moving particles apparently lose mass.

C. momentum is not conserved in very high-speed collisions.

D. a meter stick moving rapidly perpendicular to its length appears shortened in length.

E. every process is relative.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 a technique in which hr1fzvwc a/bc:o9t87 qubs4 c )di 5;xce can spontaneously convert an electron completely into energy in the laboratory without any other material required. What is the conclusion about this claim from q5b1 swbci;tc xz/89av4f occur)7 :d our current understanding of physics?

A. This is possible because Einstein’s equation says that mass and energy are equivalent… it is just very difficult to achieve with electrons

B. This is possible and it is done all the time in the high-energy physics labs.

C. The scientist is almost correct… except that in converting the electron to energy, an electron’s anti-particle is produced in the process as well.

D. The scientist is almost correct… except that in converting the electron to energy, a proton is produced in the process as well.

E. This is not possible because charge conservation would be violated.

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

08.45: Electron #1 moves with speed9b +mzx4l*9kfay+aqgf3e2n 8gjs ,mr 0.30 c where c is the speed of light. Electron #2 moves with speeyg z a+8anf 3ebsmg9,m 4 xkf*j2l9+qrd 0.60 c. What is the ratio of the kinetic energy of electron #2 to electron #1?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

09.50: What is the magnifx :ot1cqqy n7 -uq45itude of the linear momentum (in units of kg.m/s) of an electron moviit:1qq-q4co7n5 y uxfng in a straight line if it has $3.2\times\:10^{−13}J$ of kinetic energy?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 hdmebl 8-xm rb/(2v9tz67 n+ 0uqfxtok aving a ratio of 2:1. If the slower electron moves wiut7-od8 bvlr6 xteb0 x+m/2q9 k (zmfnth a speed of $1. 20\times\:10^8\:m/s$, what is the speed of the faster moving electron (in unit of m/s)?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.49: The kinetic energy associated with6(y2 bpl:-y eamjur, p an electron is twice its rest energy. At what speed is the electron tray6r bp2ul:je,pyma(- veling(in unit of m/s)?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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 qdn k wiyu/vt-( p-5)m vdw18plinear momentum of 300 $\frac{MeV}{c}$. What is the mass of the particle?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

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. Afteawwig u abs3ymta*h2* 3+/6hu r this object is accelerated to a speed owt ab+ ha6msi2* /h3gw yu*au3f $2.4\times\:10^8\:m/s$ , 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)?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

标记此题

9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

17.49: Two identical particles travel to the right. The nk yiqx:s+n2 (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)?

绑定到本题的附件链接:
绑定到本题的上传图片:

参考答案:

进入本题讨论区，参与讨论

账号		自动登录	找回密码
密码			立即注册

未使用图片

本次作答已使用