Stranded 12 m from your spacecraft, you realizethat your flashlight makes a directed beam of intensity 950 W>m2and can be used to propel you back to safety. (a) If the radius ofthe beam is 3.8 cm, how much force does it exert on you? (b) Ifyour mass (with spacesuit and gear) is 95 kg, what accelerationdoes the flashlight give you? (c) How much time will it take foryou to reach the spacecraft? (d) Frustrated by the slow pace, youthrow the 0.82-kg flashlight at 22 m>s directly away from thespacecraft. In how much time will you reach the spacecraft afteryou throw the flashlight?
Stranded 12 m from your spacecraft, you realizethat your flashlight makes a directed beam of intensity 950 W>m2and can be used to propel you back to safety. (a) If the radius ofthe beam is 3.8 cm, how much force does it exert on you? (b) Ifyour mass (with spacesuit and gear) is 95 kg, what accelerationdoes the flashlight give you? (c) How much time will it take foryou to reach the spacecraft? (d) Frustrated by the slow pace, youthrow the 0.82-kg flashlight at 22 m>s directly away from thespacecraft. In how much time will you reach the spacecraft afteryou throw the flashlight?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Question
Stranded 12 m from your spacecraft, you realize
that your flashlight makes a directed beam of intensity 950 W>m2
and can be used to propel you back to safety. (a) If the radius of
the beam is 3.8 cm, how much force does it exert on you? (b) If
your mass (with spacesuit and gear) is 95 kg, what acceleration
does the flashlight give you? (c) How much time will it take for
you to reach the spacecraft? (d) Frustrated by the slow pace, you
throw the 0.82-kg flashlight at 22 m>s directly away from the
spacecraft. In how much time will you reach the spacecraft after
you throw the flashlight?
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