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Question
Relative to reference frame 1, reference frame 2 moves with speed vin the negative xdirection. When the origins of the two frames coincide the clocks in both frames are set to zero. An event occurs at coordinate x1and time t1as measured in reference frame 1 and at coordinate x2and time t2as measured in frame 2. If 
, then the coordinates and times of the event are related by:
Answer
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Related questions
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The intensity of the microwave background radiation, a remnant of the big bang:
A) is greatest in directions toward the center of the galaxy
B) is least in directions toward the center of the galaxy
C) is proportional to the reciprocal of the distance from us
D) is proportional to the square of the distance from us
E) is nearly the same in all directions
Q:
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B) 1010y
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Q:
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Q:
The up quark u has charge +2e/3 and strangeness 0; the down quark d has charge -e/3 and strangeness 0; the strange quark s has charge -e/3 and strangeness -1. This means there can be no baryon with:A) charge 0 and strangeness 0B) charge -eand strangeness -1C) charge +eand strangeness -1D) charge +eand strangeness -2E) charge 0 and strangeness -2
Q:
A baryon is a combination of:
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C) one quark and two antiquarks
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Q:
Any meson is a combination of:
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C) one quark and two antiquarks
D) one quark and one antiquark
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Q:
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C) all strongly interacting particles
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Q:
The color theory explains why quarks:
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D) have mass
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Q:
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B) electromagnetic and strong
C) electromagnetic and weak
D) gravitational and weak
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Q:
Strangeness is conserved in:
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E) some strong particle decays
Q:
When a kaon decays via the strong interaction the products must include a:
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Q:
Two baryons interact to produce pions only, the original baryons disappearing. One of the baryons must have been:
A) a proton
B) an omega minus
C) a sigma
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Q:
In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to:
A) the energy of the least energetic electron before it is ejected
B) the energy of the least energetic electron after it is ejected
C) the energy of the most energetic electron before it is ejected
D) the energy of the most energetic electron after it is ejected
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Q:
In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to:
A) their kinetic energy
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Q:
The units of the Planck constant hare those of:
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Q:
Two isotopes of hydrogen fuse to form a helium nucleus and a neutron:2H + 3H -> 4He + nThe masses are: 2H:2.013553 u3H:3.015501 u4He:4.001506 un:1.008665 uWhat is the Qvalue of this reaction?A) 1.9 MeVB) 2.5 MeVC) 2.8 MeVD) 17.6 MeVE) 938 MeV
Q:
A particle with rest mass m moves with speed 0.6c. Its kinetic energy is:
A) 0.18mc2
B) 0.22mc2
C) 0.25mc2
D) mc2
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Q:
A particle with zero mass and energy Ecarries momentum:
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B) Ec2
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Q:
According to the theory of relativity:
A) mass is a form of energy
B) moving particles lose mass
C) momentum is not conserved in high speed collisions
D) a rod moving rapidly sideways (perpendicular to its length) is shorter along its length
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Q:
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A) 0.35c
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Q:
An event occurs at x= 500 m, t= 0.90 in one frame of reference. Another frame is moving at 0.90cin the positive xdirection. The origins coincide at t= 0 and clocks in the second frame are zeroed when the origins coincide. The coordinate and time of the event in the second frame is:
Q:
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Q:
A meter stick moves sideways (that is, in a direction perpendicular to its length) at 0.95c. According to measurements taken in the laboratory, its length is:
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C) 0.31 m
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Q:
Pi mesons at rest have a half-life of T.If a beam of pi mesons is traveling at a speed of, the distance in which the intensity of the beam is halved is:
Q:
A train traveling very fast (v= 0.6c) has an engineer (E) at the front, a guard (G) at the rear and an observer (S') exactly half way between them. Both E and G are equipped with yellow signaling lamps. The train passes a station, closely observed by the station master (S). Both E and G use their lamps to send signals. According to both S and S' these signals arrive simultaneously at the instant S' is passing S. According to S':
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B) G sent his signal before E and from further away
C) G sent his signal before E but was the same distance away
D) E sent his signal before G and from further away
E) none of the above
Q:
Figure (i) shows a double-slit pattern obtained using monochromatic light. Consider the following five possible changes in conditions:
1) decrease the frequency
2) increase the frequency
3) increase the width of each slit
4) increase the separation between the slits
5) decrease the separation between the slits
Which of the above would change Figure (i) into Figure (ii)? A) 3 only
B) 5 only
C) 1 and 3 only
D) 1 and 5 only
E) 2 and 4 only
Q:
The resolving power of a telescope can be increased by:
A) increasing the objective focal length and decreasing the eyepiece focal length
B) increasing the lens diameters
C) decreasing the lens diameters
D) inserting a correction lens between objective and eyepiece
E) none of the above
Q:
Light of wavelength 480 nm falls on a slit of width 3.5 m. What is the relative intensity (that is, the value of I/Im) of the diffraction pattern at an angle of 18?
A) 2.4 x 10-4
B) 1.7 x 10-3
C) 1.1 x 10-2
D) 1.0 x 10-1
E) 1.0
Q:
A plane wave with a wavelength of 500 nm is incident normally on a single slit with a width of 5.0 x10-6m. Consider waves that reach a point on a far-away screen such that rays from the slit make an angle of 1.0ï‚°with the normal. The difference in phase for waves from the top and bottom of the slit is:A) 0 radB) 0.55 radC) 1.1 radD) 1.6 radE) 2.2 rad