tahniah tahniah
  • 20-04-2015
  • Chemistry
Answered

what must astronauts use microphones and headphones in outer space



Answer :

HistoryGuy HistoryGuy
  • 20-04-2015
In order for sound to be hear, it must travel through a medium, such as air, through which its waves can make a disturbance. In space there is no air, so microphones must be used.
Answer Link

Other Questions

What is wrong with the following chemical equation? How could you fix it? CH4 + O2 ---> CO2 + 2H2O
an angle which measures 180° is a __ angle?
sqr of 10(-3sqr 2-2sqr 5)
Urge to be careful crossword ends with a n
use a method of completing the square in order to rewrite the function f(x)=x^2+5x-2 in vertex form, f(x)=a(x-h)^2+k where (h,k) is the vertex of the parabola.
Asexual organisms, as compared to sexual organisms, tend to be smaller, have shorter life spans, and produce little or no genetic variability between generation
A spinner has three sections. The table shows the results of spinning the arrow on the spinner 80 times. Section 1 Section 2 Section 3 18 30 32 What is the expe
I don't know what to do with this problem
Which perspectives are important in understanding a work of art? Choose the most complete answer. A) textbook perspective, insider perspective, art critic's pe
the crusades were military expeditions undertaken by