Two astronauts, working in the zero-g vacuum of space, are testing an advanced-materials ultra-light-weight retro-reflecting structure for its potential as a solar sail. A surprisingly rigid square section of the material, with an edge length of 15.2cm and a mass of only 637.1mg, is completely composed of corner reflectors. These reflectors have the convenient property that an incident beam of light is reflected back towards its source even when the angle of incidence is not perpendicular. The astronauts are using a 943W laser with a beam that has a diameter of 3.41mm.  The two astronauts, separated by 7.34m, are at rest in some frame of reference. The first astronaut gently releases the test square so that it is at rest. The laser is then directed at the center of the square with approximately normal incidence. How much time, in seconds, elapses before the test square crosses the distance between the two astronauts?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter25: Reflection And Refraction Of Light
Section: Chapter Questions
Problem 5OQ: The index of refraction for water is about 43. What happens as a beam of light travels from air into...
icon
Related questions
Question

Two astronauts, working in the zero-g vacuum of space, are testing an advanced-materials ultra-light-weight retro-reflecting structure for its potential as a solar sail. A surprisingly rigid square section of the material, with an edge length of 15.2cm and a mass of only 637.1mg, is completely composed of corner reflectors. These reflectors have the convenient property that an incident beam of light is reflected back towards its source even when the angle of incidence is not perpendicular. The astronauts are using a 943W laser with a beam that has a diameter of 3.41mm. 

The two astronauts, separated by 7.34m, are at rest in some frame of reference. The first astronaut gently releases the test square so that it is at rest. The laser is then directed at the center of the square with approximately normal incidence. How much time, in seconds, elapses before the test square crosses the distance between the two astronauts? 

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning