Matter falling into a black hole arranges itself in the shape of ...

[Chloeellawright]

Matter falling into a black hole arranges itself in the shape of a ____.
 
  a. spherical shell that is thick at the edges and thin closer to the center
  b. spherical shell that is thin at the edges and thick closer to the center
  c. disk that is thick at the outer edge, thin along the inner ring
 d. disk that is thin at the outer edge and thick closer to the center
 e. disk that is thin from the outer edge to the center

Question 2

The Doppler effect is useful in measuring the ____.
 
  a. distance to an object
 b. chemical composition of an object
 c. temperature of an object
 d. motion of an object across the line of sight of an observer
  e. motion of an object toward or away from the observer

[DHRUVSHAH]

Answer to Question 1

c

Answer to Question 2

e

[Chloeellawright]

Thanks for the timely response, appreciate it

[xiazhe]

Gracias!