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Martin
Martin, Physicist
Category: Homework
Satisfied Customers: 781
Experience:  20+ years of research, engineering and teaching
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1. What is a particle accelerator? How do scientists use particle

Customer Question

1. What is a particle accelerator? How do scientists use particle accelerators to study subatomic particles?

2. What particle is exchanged to generate each of the four fundamental forces?

3. What medical technologies (e.g. PET) rely on the physics of elementary particles?
What are the benefits of noninvasive procedures such as PET?

4. How is astronomy the oldest science?

5. How does the energy produced at the core of the Sun reach the photosphere?

6. Why won’t the Sun become a supernova or black hole?

7. Why does the existence of the cosmic redshift lead to the big bang picture of the universe?

8. If a galaxy is 1,000 Mpc away, how fast is it receding from us?

9. The average temperature of the universe is 2.7 Kelvin. What is that temperature in degrees Fahrenheit?

10. The Milky Way has a radius of approximately 100,000 light years. How many miles is that? How long would it take you to travel across our galaxy if you were traveling at 50% the speed of light (be sure to show your work for full credit)?
Submitted: 3 years ago.
Category: Homework
Expert:  Martin replied 3 years ago.
Hi there. I can help you with these questions. What is the deadline (time and timezone) for this work?
Customer: replied 3 years ago.
midnight Eastern Standard Time
Expert:  Martin replied 3 years ago.
OK, thanks John. I'll be happy to help you with these ten questions, and will get back to you tonight with your answers. Thanks!
Customer: replied 3 years ago.


This is my work computer and I will not be here tonight. Can you send the answers to my email address?

Expert:  Martin replied 3 years ago.
I'm afraid that's against site policy, but you can access this site from any computer, so I think you'll be OK.
Expert:  Martin replied 3 years ago.
I'm assuming you'll still want these answers, but please let me know. Thanks!
Customer: replied 3 years ago.

For Martin,


 


Yes, I still do.

Expert:  Martin replied 3 years ago.
THIS ANSWER IS LOCKED!

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Expert:  Martin replied 3 years ago.
Hey John, did these documents come through OK?
Expert:  Martin replied 3 years ago.
Hi John,

If these questions were not answered satisfactorily, please let me know what I might have done better. I look forward to working together on these and other questions.

Thanks