Explain to your friend, who is willing to accept that light moves at the same speed in any frame, why clocks on a passing train are not synchronized. If it helps, assume that Anna is at the middle of the train.
Explain to your friend, who is willing to accept that light moves at the same speed in any frame, why clocks on a passing train are not synchronized. If it helps, assume that Anna is at the middle of the train.
Explain to your friend, who is willing to accept that light moves at the same speed in any frame, why clocks on a passing train are not synchronized. If it helps, assume that Anna is at the middle of the train.
Expert Solution & Answer
To determine
To Explain: The clocks on a passing train are not synchronized.
Explanation of Solution
Introduction:
According to Einstein postulates of relativity i.e.
In inertial frames physical laws are valid.
Speed of light never changes relative to observers.
Let, t be the time read by A. From A’s perspective, if a light signal was sent from the end of the train by the clock and they read it to be t . Then signal sent from the end of the train will reach together to A after time t .
If someone is outside, then according to outsider’s perspective, signals must be started at different times in order to reach Aat the same time(as A is in motion). Then as per outsider’s perspective clock should read t at different times.That’s why clocks on passing train are not synchronized.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Required information
In a standard tensile test, a steel rod of 1 3 -in. diameter is subjected to a tension force of P = 21 kips. It is given that v=
0.30 and E= 29 × 106 psi.
1-in. diameter
P
P
-8 in.
Determine the change in diameter of the rod. (Round the final answer to six decimal places.)
The change in diameter of the rod is -
in.
5.84 ... If the coefficient of static friction between a table and a uni-
form, massive rope is μs, what fraction of the rope can hang over the
edge of the table without the rope sliding?
5.97 Block A, with weight Figure P5.97
3w, slides down an inclined plane
S of slope angle 36.9° at a constant
speed while plank B, with weight
w, rests on top of A. The plank
is attached by a cord to the wall
(Fig. P5.97). (a) Draw a diagram
of all the forces acting on block
A. (b) If the coefficient of kinetic
friction is the same between A and
B and between S and A, determine
its value.
B
36.9°
5.60
An adventurous archaeologist crosses between two rock cliffs
by slowly going hand over hand along a rope stretched between the
cliffs. He stops to rest at the middle of the rope (Fig. P5.60). The rope
will break if the tension in it exceeds 2.50 X 104 N, and our hero's mass
is 90.0 kg. (a) If the angle is 10.0°, what is the tension in the rope?
(b) What is the smallest value can have if the rope is not to break?
Figure P5.60
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.