8. For relativistic speeds, to whom does an object seem longer in length? O an observer moving with the object an observer moving relative to the object 9. For relativistic speeds, to whom does a clock seem to slow down?

8. For relativistic speeds, to whom does an object seem longer in length? O an observer moving with the object an observer moving relative to the object 9. For relativistic speeds, to whom does a clock seem to slow down?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter28: Special Relativity

Section: Chapter Questions

Problem 7CQ: To does an object seem greater in length, an observer moving with the object or an observer moving...

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Concept explainers

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.

Question

Please answer both

8. For relativistic speeds, to
whom does an object seem
longer in length?
O an observer moving with the object
an observer moving relative to the
object
9. For relativistic speeds, to
whom does a clock seem to
slow down?
an observer moving with the clock
an observer moving relative to the
clock

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