What is the reason a type I supernova slows its dimming after ...

[berenicecastro]

What is the reason a type I supernova slows its dimming after about 2 months?
 
  A) The planetary nebula cooled enough to form a dust shell.
  B) Energy is released from the decay of radioactive cobalt 56 to iron 56.
  C) The supernova remnant suddenly becomes transparent.
  D) The burst of energy carried by neutrinos is finally observed.
  E) Energy from the supernova's shock wave is released as it hits interstellar matter.

Question 2

The wind speeds found in the bands and zones of Saturn, compared to those on Jupiter, are about:
 
  A) 3 times faster.
  B) 2 times faster.
  C) the same.
  D) 2 times slower.
  E) 3 times slower.

[wergv]

Answer to Question 1

B

Answer to Question 2

A

[berenicecastro]

Gracias!

[jomama]

TYSM