Which of the following planets can be in opposition? a. Mercury ...

[K@]

Which of the following planets can be in opposition?
 a. Mercury
  b. Venus
  c. Earth
  d. Saturn

Question 2

Standing waves can be set up in a string when two waves that are
 a. of the same frequency and amplitude, but are opposite in direction of travel, meet each other.
  b. of the same frequency, amplitude, and direction of travel are also 180 out of phase.
  c. of the same frequency, amplitude, and direction of travel meet each other.
  d. of the same frequency, amplitude, and velocity meet each other.

[bhavsar]

Answer to Question 1

d

Answer to Question 2

a

[K@]

Gracias!

[alvinum]

Thanks for the timely response, appreciate it