1. A rocket is moving at 1/4 c relative to Earth. At the center of this rocket, a light source suddenly flashes. To an observer at rest in the rocket a. the light pulse will reach the front of the rocket at the same instant that it reaches the back of the rocket. b. the light pulse will reach the front of the rocket before it reaches the back of the rocket. c. the light pulse will reach the front of the rocket after it reaches the back of the rocket.

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Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
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Chapter1: Relativity I
Section: Chapter Questions
Problem 30P: An observer in a rocket moves toward a mirror at speed v relative to the reference frame labeled by...
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I need only number 1 and 2 revise. The red color comment is written by my professor.

*Please write your explain and tell me where I'm wrong and what did you change. Thank you

1. A rocket is moving at 1/4 c relative to Earth. At the center of this rocket, a light source suddenly flashes. To an observer at rest in the rocket a. the light pulse will reach the front of the rocket at the same instant that it reaches the back of the rocket. b. the light pulse will reach the front of the rocket before it reaches the back of the rocket. c. the light pulse will reach the front of the rocket after it reaches the back of the rocket. 

2. A rocket is moving at 1/4 c relative to Earth. At the center of this rocket, a light source suddenly flashes. To an observer at rest on Earth a. the light pulse will reach the front of the rocket at the same instant that it reaches the back of the rocket. b. the light pulse will reach the front of the rocket before it reaches the back of the rocket. c. the light pulse will reach the front of the rocket after it reaches the back of the rocket. 

1. A rocket is moving at 1/4 c relative to Earth. At the center of this rocket, a light source suddenly flashes. To an
observer at rest in the rocket
a. the light pulse will reach the front of the rocket at the same instant that it reaches the back of the rocket.
b. the light pulse will reach the front of the rocket before it reaches the back of the rocket.
C.
the light pulse will reach the front of the rocket after it reaches the back of the rocket.
2. A rocket is moving at 1/4 c relative to Earth. At the center of this rocket, a light source suddenly flashes. To an
observer at rest on Earth
a. the light pulse will reach the front of the rocket at the same instant that it reaches the back of the rocket.
b. the light pulse will reach the front of the rocket before it reaches the back of the rocket.
the light pulse will reach the front of the rocket after it reaches the back of the rocket.
C.
Transcribed Image Text:1. A rocket is moving at 1/4 c relative to Earth. At the center of this rocket, a light source suddenly flashes. To an observer at rest in the rocket a. the light pulse will reach the front of the rocket at the same instant that it reaches the back of the rocket. b. the light pulse will reach the front of the rocket before it reaches the back of the rocket. C. the light pulse will reach the front of the rocket after it reaches the back of the rocket. 2. A rocket is moving at 1/4 c relative to Earth. At the center of this rocket, a light source suddenly flashes. To an observer at rest on Earth a. the light pulse will reach the front of the rocket at the same instant that it reaches the back of the rocket. b. the light pulse will reach the front of the rocket before it reaches the back of the rocket. the light pulse will reach the front of the rocket after it reaches the back of the rocket. C.
L. A rocket is imoving at 14e relative to Earth At the center of this rocket, a light source suddenly lashes. To an
observer at rest in the rocket
O the light pulse will reach the front of the rocket at the same instant that it reaches the back of the rocket.
b the light pulse will reach the front of the rocket before it reaches the back of the rocket
c the light pulse will reach the front of the rocket after it reaches the back of the rocket
Spaed of ieht is malenh his ipendent,nf f Ste of abseier:The dscmn
in the rocket Sigue of retechle Sraed of right , unslu,bt win.hak
Uppeorid to hit both froat o hack ports simdanenddy o* same time
John P Schaub
Say more details here about why.
Because the speed of light is constant
for #2 as well, but your answers are
2. A rocket is moving at 14e relative to Earth. At the center of this rocket, a light source suddenly flashes. To an
observer at rest on Earth
a. the light pulse will reach the front of the socket at the same instant that it reaches the back of the rocket.
different.
b. the light pulse will reach the front of the socket before it reaches the back of the rocket.
the light pulse will reach the froet of the rocket after it reaches the back of the rocket.
he Speed in bulor Crectiom
w Cmpanl what is in foreraye
John P Schaub
Jiraliom, Hone the time tobam ie lack' io ley n Lompongion to dat
Not true. The speed of light is the
same in all IRFS--not some light faster
3.
An astronaut in an inertial referemce frame measures a time interval Ar between herheartbeats. What will observers in
all other inertial reference frames measure for the time interval between her heartbeats?
and some slower.
more than A
e less than AI
d. The answer depends on whether they are moving toward her or away from her
's the newtme inkereus ot h incotial hewar fram intpot : Ot
So cation is
, ot is nly atect t r
Vs0
6ピっ At
05 e lat hae bigger I higher Speas Ilished due to mill t a the auber h
Shows, ob>rbt
mare hon ot
Transcribed Image Text:L. A rocket is imoving at 14e relative to Earth At the center of this rocket, a light source suddenly lashes. To an observer at rest in the rocket O the light pulse will reach the front of the rocket at the same instant that it reaches the back of the rocket. b the light pulse will reach the front of the rocket before it reaches the back of the rocket c the light pulse will reach the front of the rocket after it reaches the back of the rocket Spaed of ieht is malenh his ipendent,nf f Ste of abseier:The dscmn in the rocket Sigue of retechle Sraed of right , unslu,bt win.hak Uppeorid to hit both froat o hack ports simdanenddy o* same time John P Schaub Say more details here about why. Because the speed of light is constant for #2 as well, but your answers are 2. A rocket is moving at 14e relative to Earth. At the center of this rocket, a light source suddenly flashes. To an observer at rest on Earth a. the light pulse will reach the front of the socket at the same instant that it reaches the back of the rocket. different. b. the light pulse will reach the front of the socket before it reaches the back of the rocket. the light pulse will reach the froet of the rocket after it reaches the back of the rocket. he Speed in bulor Crectiom w Cmpanl what is in foreraye John P Schaub Jiraliom, Hone the time tobam ie lack' io ley n Lompongion to dat Not true. The speed of light is the same in all IRFS--not some light faster 3. An astronaut in an inertial referemce frame measures a time interval Ar between herheartbeats. What will observers in all other inertial reference frames measure for the time interval between her heartbeats? and some slower. more than A e less than AI d. The answer depends on whether they are moving toward her or away from her 's the newtme inkereus ot h incotial hewar fram intpot : Ot So cation is , ot is nly atect t r Vs0 6ピっ At 05 e lat hae bigger I higher Speas Ilished due to mill t a the auber h Shows, ob>rbt mare hon ot
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