Two vectors A and B have components (0, 1, 2 ) and (-1, 3, 1), ...

[tsand2]

Two vectors A and B have components (0, 1, 2 ) and (-1, 3, 1), respectively.
 
  (a) Determine the components of the sum of these two vectors.
  (b) Determine the magnitude of the sum of these two vectors.

Question 2

Around 4 billion years ago Venus could have been more Earth-like with liquid water on its surface because
 
  A) Venus has a protective magnetic field
  B) its atmosphere was thinner
  C) Venus was farther from the Sun
  D) the Sun was dimmer so Venus would have received less radiation

[harveenkau8139]

Answer to Question 1

(a) (-1, 4, 3 )
(b) 5.1

Answer to Question 2

D

[tsand2]

Thanks for the timely response, appreciate it

[nguyenhoanhat]

Great answer, keep it coming