A beam of light is moving directly along the spaceship, but through an old-fashioned fiber optic cable. The speed of light in the cable is 0.6 times the speed of light in a vacuum. The spaceship is moving at 0.8 times the speed of light. What speed do you observe from the ground?

Q: A spaceship approaches Earth at a speed of 0.42c. A light on the front of the ship appears red…

A: (a)   Write the expression for the frequency of the light appeared by an observer on earth when the…

Q: Quasars are faint, distant sources of radio waves. (Quasar is short for "quasi-stellar source." They…

A: Given: The rate at which the quasar radiates energy is 1040 W.  Power is equal to  P=Et where E is…

Q: You encounter a moving walkway that is 75 mm long and has a speed of 1.9 m/sm/s relative to the…

A: Given value--- speed of walkway = 1.9 m/s. distance = 75 m. We have to find --- How long would it…

Q: Earth's neighboring galaxy, the Andromeda Galaxy, is a distance of 2.54×107 light-years from Earth.…

A: Given, Distance, d = 2.54×107 light years  Time taken, t = 70 years

Q: A particle is moving in the +x direction at speed c/2. Another particle is moving in the -x…

A:

Q: The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away from you at…

A:

Q: In Figure 1a, a cosmonaut measures the time interval Ato between successive ticks of his clock. In…

A: The great scientist Einstein made a notion that speed of light is constant. It could not be…

Q: Consider a space vehicle that has a length of 15.5 meters when at rest. This space vehicle zooms…

A:

Q: tourist is walking at a speed of 1.05 m/s along a 6.03-km path that follows an old canal. If the…

A:

Q: A spaceship is moving between two planets at a speed v =0.8c. Take the two planets to be at rest…

A: Given, speed (v) = 0.8c where c = 3 x 108 m/s             time (t) = 15 years…

Q: An aircraft flying at a speed of v in air produces a shock wave (sonic boom). If the speed of sound…

A: When an object travels in a medium at a speed greater than the speed of sound in that medium, it…

Q: A physics professor claims in court that the reason he went through the red light (λ = 650 nm) was…

A: The observed wavelength will increase when there is relative motion between the observer and the…

Q: How fast must you be moving toward a red light (l = 650 nm) for it to appear yellow (l = 590 nm)?…

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Q: You are in the magic school bus alone. For some reason, you decide to shine a laser straight up. The…

A: Given a situation in which a magic bus which is travelling with a relativistic speed  v=.8c where c…

Q: In the “redshift” of radiation from a distant galaxy, the light Hy, known to have a wavelength of…

A: Given: Observed wavelength is 434 nm Appeared wavelength is 462 nm

Q: v=0.570c

A: Velocity of the train, v=0.570cDistance d=1km=1000mThe time difference between the arrival of the…

Q: 1 - 1+ 1+ T 4:30 qe[s sse[8 Յq s! !q

A:

Q: A proton travels at 99.9936% of the speed of light. An antiproton travels in the opposite direction…

A: Given data: The speed of proton is vp=99.9936%c. The speed of antiproton is vap=99.9936%c.

Q: A lighthouse beacon alerts ships to the danger of a rocky coastline. Part A According to the…

A:

Q: The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away from you at…

A: Speed of the ship moving away v=0.291c and speed of the torpedo with respect our ship u=0.343c where…

Q: These questions refer to identical spaceships that you and your friend are using. The ships are…

A: The solution of the problems is given below

Q: The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away from you at…

A:

Q: A meter stick moving in a direction parallel to its length appears to be only 43.6 cm long to an…

A: Given: The actual length of the stick is 1 m( meterstick). The apparent length of the stick is 43.6…

Q: n enemy spacecraft attempts to escape from your spacecraft by moving away from you at 0.273 of the…

A: Given data:-  The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away…

Q: An alien spaceship has a mass ofm= 3.2×109kg, and according to the crew, onboard the bow-to-stern…

A: mass of spaceship (m) = 3.2×109 kg Length measured onboard (Lo) = 680 m Length measured by…

Q: About how far apart must you hold your hands for them to be separated by 1.5 nano-light-second (the…

A: Given data: The time is t=1.5 ns. The speed of the light is c=2.998×108 m/s. The distance travel…

Q: The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away from you at…

A:

Q: The crew of an enemy spacecraft attempts to escape from your spacecraft by moving away from you at…

A:

Q: A spacecraft leaves Earth at 75 percent light speed. An event occurs at (50,40,30,20) m of…

A:

Q: A rocket cruises past a laboratory at 0.400×106m/s in the positive x-direction just as a proton is…

A: Write the expression for speed of the proton in laboratory frame .

Q: One of the wavelengths of light emitted by hydrogen atoms under normal laboratory conditions is λ =…

A: Here the wavelength of light increases, Doppler shift is negative. wavelength of the source,…

Q: You are driving down a two-lane country road, and a truck in the opposite lane is traveling toward…

A: You are driving down a two-lane country road, and a truck in the opposite lane is traveling toward…

Q: An organist on earth is playing Bach’s Toccata and Fugue in D Minor, which is being broadcast by a…

A: D minor is a scale comprising of D-1, D0, D1, D2, D3, D4, D5, D6, D7 keys etc. Since D4 is a middle…

Q: spacecraft is traveling at ~v = 38.4km s (yes, that is a reasonable speed for a rocket). How long…

A: Given: The speed of the rocket is 38.4 km/s. The distance from the earth to the moon is 384 Mm.

Q: A duck, standing by the side of the road at night, sees a car approaching at a speed of 0.2c. If the…

A:

Q: One of the wavelengths of light emitted by hydrogen atoms under normal laboratory conditions is l =…

A: We know that,Relativistic Doppler shift , λ0λ0=λsc+vc-vwhere, λ0 is the wavelength observed in…

Q: Someone in Earth's rest frame says that a spaceship's trip between two planets took 10.0 years,…

A:

Q: 3. Race rocket driver Suzy is heading down the final straightaway, approaching the finish line at…

A: Required : The speed of light.

Q: Consider the case of two kids, Sam and Peter, riding a train and playing catch in an empty car. The…

A: Speed of train = 10 m/s (towards right)Speed of ball thrown by Sam = 5 m/s (towards right)Speed of…

Q: How long should it take the voices of astronauts on the Moon to reach the Earth? Assume that the…

A: The expression for the taken time is,

Q: Figure 1a, a cosmonaut measures the tim interval Ato between successive ticks of his clock. In…

A: Time interval between successive ticks as seen by the astronaut in the spaceship in his clock,…

Q: When Barry enters the hallway, passing Clark, a spark jumps from Barry's elbow to the frame of the…

A: Given: Length of the hall way, Lc = 525 m Speed of flash measured by Clark, vc% = 28% of speed of…

Q: A cylindrical spaceship of length 35.0 m and diameter 8.35 m is traveling in the direction of its…

A: Given :-   L = 35.0 m  d = 8.35 m V = 2.44 × 10 8  We know C = 3 × 10 8   For part c given  d = 10…

Q: A spaceship measures bright flashes of light from a distant star. The spacecraft now heads toward…

A:

Q: You are on an interstellar mission from the Earth to the 8.7 light-years distant star Sirius. Your…

A: (a) since the space ship travels at a speed comparable to the speed of light, the distance to the…

Q: The speed of light in free space has been measured to be 2.99792458 × 108 m/s. (A) 3 Significant…

A: Required : The speed of light in  3,5,7, significant figures.