Question

$\cdot$ Mars Rover When the Mars rover Sojourner was deployed on the surface of Mars in July 1997 , radio signals took about 12 min to travel from Earth to the rover. How far was Mars from Earth at that time?

Name: Problem 10, Chapter 25: Physics
Uploaded: 2020-02-11T08:55:58-08:00
Duration: 2 min 32 s
Channel: Alex Moore
Description: ·Mars Rover When the Mars rover Sojourner was deployed on the surface of Mars in July 1997 , radio signals took about 12 min to travel from Earth to the rover. How far was Mars from Earth at that time?

   $\cdot$ Mars Rover When the Mars rover Sojourner was deployed on the
surface of Mars in July 1997 , radio signals took about 12 min to
travel from Earth to the rover. How far was Mars from Earth at that
time?

Physics

James S. Walker 5th Edition

Chapter 25, Problem 10

Instant Answer

Solved by Expert Alex Moore

02/11/2020

Step 1

Step 1: We know that the speed of light is $3 \times 10^8$ meters per second and the time taken for the radio signals to travel from Earth to Mars is 12 minutes. Show more…

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$\cdot$ Mars Rover When the Mars rover Sojourner was deployed on the surface of Mars in July 1997 , radio signals took about 12 min to travel from Earth to the rover. How far was Mars from Earth at that time?

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Key Concepts

Unit Conversion

Unit conversion is a key process in ensuring that all quantities in a calculation are expressed in compatible units. For example, converting time from minutes to seconds is necessary when using the speed of light in meters per second, to accurately compute the distance traveled.

Speed of Light

The speed of light is a fundamental physical constant that represents the rate at which light and other electromagnetic waves propagate in a vacuum, approximately 3 x 10^8 meters per second. This constant is crucial for calculating distances in space when the time taken for light or radio signals to travel is known.

Time-Distance Relationship

This principle is based on the formula Distance = Speed x Time, which directly relates the distance traveled to the speed of an object or signal and the duration of travel. It is widely applied in physics and astronomy to determine distances when the speed of propagation, such as light speed, is known.

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