Physics Unit26: Special Theory of Relativity - https://webassign.org

?E-Test & E-Assign?Generic Physics?Physics Unit26: Special Theory of Relativity

My Identity | My ExamLogs | Wrong Records | Saved Problems | Help

Unused Images

Tips: allowed image types are: gif, jpg, jpeg, png, webp; When uploading is finished, thumbnails will be generated and shown above. You can either double click on the thumbnail or simply drag the thumbnail with your mouse, the image will be bound to the current problem and displayed below it.

Used Images in Current Log

Tips: What is shown in this column are all the images associated with this exam log. Those bound to a particular problem will also be displayed immediately underneath it; Deleting any images will make them to be transfered to the "Unused images" category.

PRACTICE：Physics Unit26: Special Theory of Relativity

本Practice来源于https://webassign.org，是在线Practice的打印版，您也可以访问本平台网站(https://webassign.org/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 325 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://webassign.org/test325.html
Author: physics Total Marks: 61 mks Marks Awarded: _____________

User Name: No Login Start Time: 23年05月01日 10:04 Switch to Whole-Paper Mode

1#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

You are riding in a spaceship that has no windows, radios, or other means fobqqq 9/+x0 nn.0e+fw 6t pebuor you to observe or measure what is outside. You wish to determine if the ship is stopped or moving at constant velocity. ebx u6qoen.0q t9/nbw0+ pf+q What should you do?

A. You can determine if the ship is moving by determining the apparent velocity of light.

B. You can determine if the ship is moving by checking your precision time piece. If it's running slow, the ship is moving.

C. You can determine if the ship is moving either by determining the apparent velocity of light or by checking your precision time piece. If it's running slow, the ship is moving.

D. You should give up because you have taken on an impossible task.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

2#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The Michelson-Morley experiment was designed to measkn(;rnd1w-jm o9 xl5o ure

A. the relativistic mass of the electron.

B. the relativistic energy of the electron.

C. the velocity of the Earth relative to the ether.

D. the acceleration of gravity on the Earth's surface.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

3#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

Michelson and Morley concluded from the results of theih18c h;kie8zf r experiment that

A. the experiment was a failure since there was no detectable shift in the interference pattern.

B. the experiment was successful in not detecting a shift in the interference pattern.

C. the experiment was a failure since they detected a shift in the interference pattern.

D. the experiment was successful in detecting a shift in the interference pattern.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

4#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

You can build an interferometer you8 n ze.c,t.3gccn8e mprself if you use the following components:

A. a light source, a detector screen, a partially silvered mirror, a flat mirror, and a glass plate.

B. a light source, a detector screen, two partially silvered mirrors, and a glass plate.

C. a light source, a detector screen, two partially silvered mirrors, a flat mirror, and a glass plate.

D. a light source, a detector screen, a partially silvered mirror, two flat mirrors, and a glass plate.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

5#

Free-Response ( 1.0 marks) Whole-Paper View Save Problem

State the relativity principll 3a4wgq,km *pblc n(v66y +swe.

该题自我估分: (必填) (满分:1.0分)

绑定到本题的附件链接:
绑定到本题的上传图片: (问答题类型题目图片/附件必须插入上方文本框，否则会被移除题目绑定)

Correct Answer:

Join the discussion for this question

6#

Free-Response ( 1.0 marks) Whole-Paper View Save Problem

State the three unprovable assumptions of Galilea lrqam3-*mmt:n-Newtonian relativity.

该题自我估分: (必填) (满分:1.0分)

绑定到本题的附件链接:
绑定到本题的上传图片: (问答题类型题目图片/附件必须插入上方文本框，否则会被移除题目绑定)

Correct Answer:

Join the discussion for this question

7#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The theory of special relat.) -txwx 3gdik2r7paeivity

A. is based on a complex mathematical analysis.

B. has not been verified by experiment.

C. does not agree with Newtonian mechanics.

D. does not agree with electromagnetic theory.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

8#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

One of Einstein's postulates in formulatinzva i.:k4 3imrg the special theory of relativity was that the laws of physics are av 4z .imi:r3kthe same in reference frames that

A. accelerate.

B. move at constant velocity with respect to an inertial frame.

C. oscillate.

D. are stationary, but not in moving frames.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

9#

Free-Response ( 1.0 marks) Whole-Paper View Save Problem

State the first postulate.7mefm ls8z/e of special relativity.

该题自我估分: (必填) (满分:1.0分)

绑定到本题的附件链接:
绑定到本题的上传图片: (问答题类型题目图片/附件必须插入上方文本框，否则会被移除题目绑定)

Correct Answer:

Join the discussion for this question

10#

Free-Response ( 1.0 marks) Whole-Paper View Save Problem

State the second postuu-hwega *0uo(/y.ekd late of special relativity.

该题自我估分: (必填) (满分:1.0分)

绑定到本题的附件链接:
绑定到本题的上传图片: (问答题类型题目图片/附件必须插入上方文本框，否则会被移除题目绑定)

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

11#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

If you were to measure your pulse rate while in a spaceship moving away from thmlhw ykpv97w tu a(49g l-t7i-e Sun at a speed close t4lal( w9 iu wg kph7t9-t7ymv-o the speed of light, you would find that it was

A. much faster than normal.

B. much slower than normal.

C. the same as it was here on Earth.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

12#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

Relative to a stationary observerj8umdf(*cx n/ , a moving clock

A. always runs slower than normal.

B. always runs faster than normal.

C. keeps its normal time.

D. can do any of the above. It depends on the relative velocity between the observer and the clock.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

13#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The gamma factor is defigv7ts5 .osx1uned as $\gamma = 1 / \sqrt{1- (v/c)^2}$, therefore gamma ($\gamma$)

A. can be zero.

B. can be any number less than or equal to one.

C. can be any number greater than or equal to one.

D. cannot equal one.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

14#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

Suppose one twin takes a qd9l me/oz5 t-ride in a space ship traveling at a very high speed to a distant star and back again, while the other twin remains on Earth. The twin that remained on Earth predicts that the astronaut t5d o 9q-zmel/twin is

A. younger.

B. the same age.

C. older.

D. cannot be determined from the given information

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

15#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

Relative to a stationary observer, a moving obz+. p5c 0p wfh1gihre7ject

A. appears shorter than normal.

B. appears longer than normal.

C. keeps its same length time.

D. can do any of the above. It depends on the relative velocity between the observer and the object.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

16#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

An object moves in a direction parallel to its length with a velocity tham 2gmc47u oo.xgh ed*:t approaches the velocity of light. The wi2o*:m7g 4 xegmch.u dodth of this object, as measured by a stationary observer,

A. approaches infinity.

B. approaches zero.

C. increases slightly.

D. does not change.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

17#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

An object moves in a direction paaq77zvyk1 0yf rallel to its length with a velocity that approaches the velocity of light. The length of this object, as measured by a statz0yy afk7q7v1ionary observer,

A. approaches infinity.

B. approaches zero.

C. increases slightly.

D. does not change.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

18#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

As the speed of a particle approachesv86n)vzr gr;ztg;gvfnf 2v( 3 the speed of light, the mass of the particlen vrt z; rv28fgvnv;( z)3ggf6

A. increases.

B. decreases.

C. remains the same.

D. approaches zero.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

19#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

As the speed of a par3 t,zrvsg5icg+8x0qt ticle approaches the speed of light, the momentum of the parc ,530g+rqt zixgsv 8tticle

A. increases.

B. decreases.

C. remains the same.

D. approaches zero.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

20#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A spear is thrown by you at a very high speed.i5:h+/ofwtstud1m*oo/ y6.y:m n yzn As it passes, you measure its length at one-half its normal length. From this measurement, you c6m:ioyw+.n o:fou hsy n* /m/t1z5dytonclude that the moving spear's mass must be

A. one-half its rest mass.

B. twice its rest mass.

C. four times its rest mass.

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

21#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

What happens to the kinetic energy of a spex:tz0ht.2 p5kudar i( 8kg yn xpmx5*4edy proton when its relativistic mass dot5xi4d:(z0p5ukyr2ptm. a8g kn h *xxubles?

A. It doubles.

B. It more than doubles.

C. It less than doubles.

D. It must increase, but it is impossible to say by how much.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

22#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

What happens to the total relativistic energy of a speedyg domh8 n+y,4)+zri yc proton when its relativistic mass doublircz+gd,8+hyy ) 4mones?

A. It doubles.

B. It more than doubles.

C. It less than doubles.

D. It must increase, but it is impossible to say by how much.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

23#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

Consider a particle of mass 9s2nj x mch44g$m$ and rest mass $m_0$. Which of the following is the correct expression for the kinetic energy of such a particle?

A. $\frac{1}{2} m_0 v^2$

B. $\frac{1}{2} m v^2$

C. $m c^2 - m_0 c^2$

D. $\frac{1}{2}(mc^2 - m_0 c^2)$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

24#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

Consider two spaceships, each travelijn+f5g;:mlj3l 8u 8b c(bzhfing at 0.50c in a straight line. Ship A is moving directly away from the Sun and ship B is approaching the Sun. The science officers on each ship measure the vecfgf583lh bj mbn l(8ij+z: ;ulocity of light coming from the Sun. What do they measure for this velocity?

A. Ship A measures it as less than c, and ship B measures it as greater than c.

B. Ship B measures it as less than c, and ship A measures it as greater than c.

C. On both ships it is measured to be less than c.

D. On both ships it is measured to be exactly c.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

25#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

Which of the following depe/8v r o8dwqg1w:,dhbnnds on the observer's frame of reference?

A. the mass of the proton

B. the length of a meter stick

C. the half-life of a muon

D. all of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

26#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

As the velocity of your spaceship increases, you ef15g; t/jeyx cm:c6s would observe

A. that your precision clock runs slower than normal.

B. that the length of your spaceship has decreased.

C. that your mass has increased.

D. all of the given answers

E. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

27#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A boat can travel 4.0 m/s in still water. With what speed, relativek :c 6//coxxdb to the shore, d/d/xbck x :6ocoes it move in a river that is flowing at 1.0 m/s if the boat is heading upstream?

A. 3.0 m/s

B. 4.1 m/s

C. 4.8 m/s

D. 5.0 m/s

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

28#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A boat can travel 4.0 m/s in still wat3venfapga)ihkg/+/ . j.4 ma g*n0 yhyer. With what speed, relative to the shore, does it move in a river+/yp)* .jh4n kvfa 3yengi0a/ag .mgh that is flowing at 1.0 m/s if the boat is heading downstream?

A. 3.0 m/s

B. 4.1 m/s

C. 4.8 m/s

D. 5.0 m/s

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

29#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A boat can travel 4.0 m/s in still wxbgk686o phfap 2h;i*ater. With what speed, relative to the shore, does it move in a river that is flowing at 1.0 m/s if the boat is heading straight across the r6ap8hxio2kb h ;g*p6fiver?

A. 3.0 m/s

B. 4.1 m/s

C. 4.8 m/s

D. 5.0 m/s

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

30#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

How fast should a moving clock travel if it is to bll+ f0yc02xqq r2yh2p e observed by a stationary observer as running at one-half its normal racph02y2ylq2 +r fxlq0 te?

A. $0.50 \; c$

B. $0.65 \; c$

C. $0.78 \; c$

D. $0.87 \; c$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

31#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A spaceship takes a nonstop.qgy)ziv 6f3fm7nz/k journey to a planet and returns in 10 hours according to a clock on the spaceship. If the speed of z3 n76/yf kmq zfg.i)vthe spaceship is 0.80c, how much time has elapsed on the Earth?

A. $3.2 \; h$

B. $7.0 \; h$

C. $15 \; h$

D. $17 \; h$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

32#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A set of twins, Andrea and Courtney, are w.0+ff;pk e wcinitially 10 years old. While Courtney remains on Earth, Andrea rides on a space ship which travels away from Earth at a speed of 0.6c fw0;pkw.fe c+for five years (as measured by Courtney), then turns around and comes back at 0.6c. When Andrea returns, Courtney is 20 years old. How old is Andrea upon her return?

A. $10 \; years$

B. $12 \; years$

C. $18 \; years$

D. $20 \; years$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

33#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

One 20-year-old twin brother takes a7txc8j(.k b;jnhkvrok 6o b:3r.oux(-w 6yrd space trip with a speed of 0.80c for 30 years aju6vrod ;btoky:n.j (.wrkx6k-o 7rb3x h8 (cccording to a clock on the spaceship. Upon returning to the Earth, what is his own age and the age of the Earth-based twin brother?

A. 20; 30

B. 30; 50

C. 50; 70

D. 70; 90

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

34#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A meter stick is moving toward you 1k5 bjs sxv7*hwith a speed of 0.80c. What is its length?

A. zero

B. $0.40 \; m$

C. $0.60 \; m$

D. $1.0 \; m$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

35#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

How fast would a rocket ship have to move to contract dbpfjq ,+t:yvu/z5qr;5 vx/gto half of its proper lengtq ,jv /r5 y/5tz :pbuf+gqvxd;h (as observed by a stationary object)?

A. $0.50 \; c$

B. $0.65 \; c$

C. $0.78 \; c$

D. $0.87 \; c$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

36#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The length of a spaceship is 10 m when it is 5w:z*gqc4x e6ufd (du at rest. If the spaceship travels by you 6ddwz e(qc f4*gx:uu 5with a speed of 0.70c, what length does it appear to you?

A. $5.5 \; m$

B. $7.1 \; m$

C. $12 \; m$

D. $18 \; m$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

37#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The closest star to our solar system is Alpha Centauri, which is 4.30 ligaspw acw3 v*m8u/e09 9wkg9qnht years away. A spaceship with a constant speed of 0.800c relative to the Earth travelcq*wswk8pg 9993 0wuaen m/av s toward the star. What distance does the space ship travel according to a passenger on the ship?

A. $2.58 \; ly$

B. $3.52 \; ly$

C. $4.12 \; ly$

D. $4.30 \; ly$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

38#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The closest star to our solar system is Ay ab+s.x hn4s69 dahr0lpha Centauri, which is 4.30 light years away. A spaceship with a constant speed of 0.800c relative to the Earth travels toward the star. How muca6 yhn 90b+.rda4xssh h time would elapse on a clock on board the spaceship?

A. $3.23 \; y$

B. $4.40 \; y$

C. $5.15 \; y$

D. $5.38 \; y$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

39#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The closest star to our solar system is Alpha Centauri, which is 4.30 light y) isxpaq0jt*a l).w0lears away. A spaceship with a constant speed of 0.800c relative to the Earth travels toward the star. How much time would elapse on a clock on thlp0.*j0)qx w)talisae Earth?

A. $3.23 \; y$

B. $4.40 \; y$

C. $5.15 \; y$

D. $5.38 \; y$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

40#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

An electron is traveliiht3 e3o0rok/iiwn75c/j,/+ z2.hsg xyb t ge ng at 0.85c. What is its mass? (The rest mass is $9.11 \times 10^{-31} \; kg$.)

A. $1.4 \times 10^{-29} \; kg$

B. $7.2 \times 10^{-30} \; kg$

C. $1.7 \times 10^{-30} \; kg$

D. $2.4 \times 10^{-30} \; kg$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

41#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

What is the speed of a proton if its mass is twice its 7kfkw, -fqka2giy6 :3zhl0bw rest mass?

A. $0.50 \; c$

B. $0.68 \; c$

C. $0.73 \; c$

D. $0.87 \; c$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

42#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

If the velocity of your spaceship goes from 0.3 c to 0.6 c, then your1zy fq 7m(mzx;s7o )jv mass will increase bq jmf ;vx7(sz)7myoz1 y

A. 19%.

B. 38%.

C. 100%.

D. 200%.

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

43#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

What is the momentum i 1zk (whc0pmjkfb0t3+n $kg \cdot m/s$ of a proton when it is moving with a speed of 0.60c?

A. $1.2 \times 10^{-19} \; kg \cdot m/s$

B. $1.5 \times 10^{-19} \; kg \cdot m/s$

C. $3.0 \times 10^{-19} \; kg \cdot m/s$

D. $3.8 \times 10^{-19} \; kg \cdot m/s$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

44#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

During a reaction, an elem fwu6c5s7n d+gr fn9)sent loses $4.8 \times 10^{-28} \; kg$ of mass. How much energy (in Joules) is released?

A. $4.3 \times 10^{-11} \; J$

B. $1.4 \times 10^{-19} \; J$

C. $1.6 \times 10^{-36} \; J$

D. $5.3 \times 10^{-45} \; J$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

45#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

During a reaction, $1.7 \times 10^{-4} \; J$ of energy is released. What change of mass would cause this?

A. $5.1 \times 10^{-4} \; kg$

B. $1.5 \times 10^{-13} \; kg$

C. $4.8 \times 10^{-18} \; kg$

D. $1.9 \times 10^{-21} \; kg$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

46#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

How much energy would be released if 2.0 kg - h6ba; biu (x3wgok2wof material was lost during a reacti-;uokb 3ih a 2g(w6wbxon?

A. $1.8 \times 10^{17} \; J$

B. $1.5 \times 10^{16} \; J$

C. $6.0 \times 10^{8} \; J$

D. $4.7 \times 10^{-8} \; J$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

47#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The amount of energy equivalent to two kilogram of mass at res asyqw2s gh(,q vkc,nt.5+5gkt is

A. $18 \times 10^{16} \; J$.

B. $3.0 \times 10^{8} \; J$.

C. $9.0 \times 10^{16} \; J$.

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

48#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The atomic bomb that was dropped on tcev xqi.7 (8tNagasaki in 1945 killed 140,000 people, helping to end World War II on t(ix 8qc7te.vthe next day. It released energy equivalent to that of 20,000 tons of TNT explosive. How much mass was converted to energy when this took place? (1000 tons of TNT = $4.3 \times 10^{12} \; J$) Incidentally, modern H-bombs have energy yields 1000 times as much!

A. $1 \; g$

B. $10 \; g$

C. $100 \; g$

D. $1 \; kg$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

49#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The kinetic energy of a proton is 80% of g dsgg eh,*tr.*spwhg3.; ,dx its total energy. What is the speed of the p*we s gs x.,*rtdhd;pg.gg, 3hroton?

A. $0.02 \; c$

B. $0.87 \; c$

C. $0.98 \; c$

D. $1.0 \; c$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

50#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

The kinetic energy of a proton is 80% of its total energy. What is the 0 s+glr-.fm sp5vi-, a njs,bfmomentum - jb-sm,n0fsi+va prf g5l.,sin $kg \cdot m/s$ of the proton?

A. $5.0 \times 10^{-19} \; kg \cdot m/s$

B. $2.5 \times 10^{-19} \; kg \cdot m/s$

C. $5.0 \times 10^{-18} \; kg \cdot m/s$

D. $2.5 \times 10^{-18} \; kg \cdot m/s$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

51#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

What energy is released (in /a:-lcv9pccs ( ap-vwMeV) during a reaction in which $1.67 \times 10^{-25} \; kg$ of material is converted to energy?

A. $5.0 \times 10^{-14} \; MeV$

B. $4.1 \times 10^{-7} \; MeV$

C. $3.1 \times 10^{-4} \; MeV$

D. $9.4 \times 10^{4} \; MeV$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

52#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

How much mass is lost during a reactib4z:nq p jt+n*hnggu.30l+u p0rak:s on in which $1.7 \times 10^{8} \; MeV$ of energy is released?

A. $1.8 \times 10^{-8} \; kg$

B. $5.7 \times 10^{-9} \; kg$

C. $1.9 \times 10^{-17} \; kg$

D. $3.0 \times 10^{-22} \; kg$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

53#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

What is the total energy of an electro ow sk;(,efb;+bhf(ez n moving with a speed of 0.95c?

A. $2.6 \times 10^{-13} \; J$

B. $8.2 \times 10^{-14} \; J$

C. $1.1 \times 10^{-13} \; J$

D. $1.2 \times 10^{-14} \; J$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

54#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

How many joules of energy are required ihvfp(ia)3z b21-xmr to accelerate one kilogram of mass from rest to a velocityvb)3mp1x-z rfha (2ii of 0.866 c?

A. $1.8 \times 10^{17} \; J$

B. $9.0 \times 10^{16} \; J$

C. $3.0 \times 10^{3} \; J$

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

55#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

In a nuclear plant, l3 6tux*0u khipgp8o1$1017$ J of energy is available from mass conversion. How much mass was lost?

A. $0.1 \; kg$

B. $1 \; kg$

C. $10 \; kg$

D. $100 \; kg$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

本Practice全部题目来源于https://webassign.org，学生可自助刷题练习，扫右侧二维码加微信，获取学习资料，答疑辅导
教师可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力

56#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

An electron is accelerated through 100 kV. By what factor has its massr (w8d 9ofzzp* increased with respect to its rest zw p8zdr(o9*f mass?

A. 1.20

B. 1.55

C. 4.25

D. 8.00

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

57#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

You are in a rocket traveli3ex7xhw/o t - uf+pijsry,/*ang away from the Sun at 0.95c. You measure the speed of light from the Suh+pauie/s*-wxf / x7j toyr3,n to be

A. 0.05c.

B. 0.95c.

C. 1.0c.

D. cannot be determined without knowing the frequency of the light

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

58#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

Two spaceships are traveling thrs :rdm7iofzcgf i;tqz3, s632ough space at 0.60 c relative to the Earth. If the ships are headed directly toifdc:if3q7;r2t3 s6gzs m ,zoward each other, what is their approach velocity, as measured by a person on either craft?

A. $1.2 \; c$

B. $c$

C. $0.60 \; c$

D. none of the given answers

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

59#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A fast spaceship is traveling with a speed of 0.80c. How fast wout0)mz: 6h b env09ywould light travel from the headlights of the ship relative to a stationary observe o0nw v9mh06b z:y)teur?

A. $0.20 \; c$

B. $0.80 \; c$

C. $1.0 \; c$

D. $1.8 \; c$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

60#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A spaceship moves away from the Earth with a sped(8ei:cq-zcymv7ph;8 c f cq6 ed of 0.80c. The spaceship then fires a missile with a speed of 0cc;zcc- v8i(p8 y6:mh dq e7fq.50c relative to the spaceship. What is the velocity of the missile measured by observers on the Earth if the missile is fired away from the Earth?

A. $0.30 \; c$

B. $0.50 \; c$

C. $0.93 \; c$

D. $1.3 \; c$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

61#

Single-Choice ( 1.0 marks) Whole-Paper View Save Problem

A spaceship moves away from the Earth with a mzqc7mf+ yyf ;s 7nn/pndi 8+,speed of 0.80c. The spaceship then fires a missile with a speed of 0.50c relative to the spaceship. What is th7p ++ zi;y ,c d8qnm7mff/synne velocity of the missile measured by observers on the Earth if the missile is fired toward the Earth?

A. $0.30 \; c$

B. $0.50 \; c$

C. $0.93 \; c$

D. $1.3 \; c$

绑定到本题的附件链接:
绑定到本题的上传图片:

Correct Answer:

Join the discussion for this question

:

Total:61 mks Pass:36.6 mks Duration:Unlimited

未答题:

已答题:0

答错题:

当前第题，此次Practice共有 61 道题

试卷内容到此结束! © 2024 https://webassign.org版权所有

Archiver|Mobile Version|Jailroom|https://webassign.org

2025-1-11 00:46 GMT+8 , Processed in 0.165483 second(s), 134 queries , Redis On.

To Top