Electromagnetic wave astronaut problem

In summary, an 80 kg astronaut has drifted 5.0 m away from his space capsule and has a 1000 W portable laser with fresh batteries that will operate for 1.0 hr. He must use the laser to accelerate himself towards the capsule, but is missing a piece of the equation. He also has a 10-hr supply of oxygen. The problem is to calculate when the astronaut will reach the capsule.
  • #1
Cakiemmatdo
8
0

Homework Statement

An 80 kg astronaut has gone outside his space capsule to do some repair work. Unfortunately, he forgot to lock his safety tether in place, and he has drifted 5.0 m away from the capsule. Fortunately, he has a 1000 W portable laser with fresh batteries that will operate it for 1.0 hr. His only chance is to accelerate himself toward the space capsule by firing the laser in the opposite direction. He has a 10-hr supply of oxygen.



Homework Equations


Intensity = P/A
F=ma
Electromagnetic wave F =q(E+ V x B)
E=cB

The Attempt at a Solution

I have tried to solve it for F but the thing is we don't have q and also there is a piece of equation that is missing and I don't know what it is since I couldn't find anything to relate in the book

Thanks
 
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  • #2
What exactly are you supposed to calculate or find?
 
  • #3
Oh, it's asking when the astronaut will reach the capsule
 
  • #4
Looks like you'll need the momentum of the laser beam.
 

Related to Electromagnetic wave astronaut problem

1. What is the "Electromagnetic wave astronaut problem"?

The "Electromagnetic wave astronaut problem" refers to the potential health risks posed by exposure to electromagnetic fields (EMFs) for astronauts during space missions. EMFs are a form of energy that is present in the environment and can be generated by electronic devices. Astronauts are exposed to higher levels of EMFs due to the use of various electronic equipment on spacecrafts.

2. What are the potential health risks associated with exposure to EMFs for astronauts?

Exposure to high levels of EMFs can potentially disrupt the normal functioning of cells and tissues in the body, leading to a variety of health problems such as fatigue, headaches, and even the development of certain types of cancer. The effects of EMFs on the human body are still being studied and understood, but it is important to minimize exposure to these fields to ensure the safety of astronauts.

3. How are astronauts exposed to EMFs during space missions?

Astronauts are exposed to EMFs through a variety of sources, including communication and navigation systems, power generation and distribution systems, and medical equipment. The levels of exposure can vary depending on the type of equipment and the duration of exposure. Astronauts are also exposed to natural sources of EMFs, such as cosmic radiation, during spacewalks and long-duration missions.

4. How do scientists monitor and mitigate the effects of EMFs on astronauts?

Scientists use various methods to monitor and mitigate the effects of EMFs on astronauts. This includes measuring the levels of EMFs on spacecrafts and developing guidelines for safe exposure limits. They also conduct research to understand the effects of long-term exposure to EMFs and develop technologies to shield astronauts from high levels of EMFs during space missions.

5. What steps are being taken to protect astronauts from the potential health risks of EMFs?

NASA and other space agencies have established guidelines and protocols to minimize astronauts' exposure to EMFs during space missions. This includes implementing shielding technologies, limiting exposure time, and using safe and low-EMF emitting equipment. Ongoing research and advancements in technology also aim to further protect astronauts from potential health risks associated with EMFs in space.

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