Waves of amplitudes 0.4 m and 0.3 m interfere while traveling in ...

[B]

Waves of amplitudes 0.4 m and 0.3 m interfere while traveling in the same direction with the same speed. If the wavelengths are the same, what are the resulting largest and smallest amplitudes possible?
  1.0.7 m and 0.5 m
  2.0.7 m and 0.1 m
  3.0.5 m and 0.35 m
  4.0.5 m and 0.1 m

Question 2

Three strings on a guitar are first stretched to the same tension. The first of the strings is heavy (thick), the third is light (thin), and the second is in between. Rank them according to the speed at which waves would propagate along them if they were plucked, with the fastest last.
  1.(3) (2) (1)
  2.(3) (1) (2)
  3.(1) (2) (3)
  4.The waves would propagate at the same speed through each.

[LegendaryAnswers]

Answer to Question 1

2

Answer to Question 2

3

[B]

TYSM

[T4T]

Gracias!