menu
Qammunity
Login
Register
My account
Edit my Profile
Private messages
My favorites
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
An alien spaceship 8x10^14m away sends us a radio wave signal. How long does it take for the signal to reach us?
asked
Jun 18, 2023
114k
views
10
votes
An alien spaceship 8x10^14m away sends us a radio wave signal. How long does it take for the signal to reach us?
Physics
college
Seth Battin
asked
by
Seth Battin
8.2k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
13
votes
Time = distance/speed
Time = 8•10^14m / 3•10^8m/s
Time = about 2.7•10^6 seconds.
That's about 31 Earth days.
Bagira
answered
Jun 21, 2023
by
Bagira
8.4k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Aug 21, 2020
113k
views
An alien spaceship is 8*10^14 m away sends us a radio wave signal. How long does it take for the signal to reach us?
McGiogen
asked
Aug 21, 2020
by
McGiogen
7.4k
points
Physics
middle-school
1
answer
3
votes
113k
views
asked
Oct 4, 2021
31.0k
views
If radio waves were used to communicate with an alien spaceship approaching Earth at 10% of the speed of light c, Earth would receive their signals at a speed of
Vasily Liaskovsky
asked
Oct 4, 2021
by
Vasily Liaskovsky
7.7k
points
Physics
college
1
answer
3
votes
31.0k
views
asked
May 27, 2021
41.7k
views
If radio waves are used to communicate with an alien spaceship approaching Earth at 10% of the speed of light c, the aliens would receive our signals at speed of
Kivy
asked
May 27, 2021
by
Kivy
7.7k
points
Physics
college
1
answer
2
votes
41.7k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Other Questions
Physical properties of minerals graphic organizer
A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how high (in m) was the building?
What type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)
what is a device that transforms thermal energy to mechanical energy
How many light sources do you know Pls list them
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity