Question

Two waves are superposed. One wave has an amplitude of 3 cm, and the other has an amplitude of 4 cm. What is the resultant amplitude?

Answer 1

Are we assuming that the waves have the same frequency ?

Answer 2

Yes, I believe so.

Answer 3

what grade you in

Answer 4

12th

Answer 5

If it helps my choices are either 7 or 1

Answer 6

7

Answer 7

i think you need horizontal and vertical compnents of the wave in order to calculate the resultant :

Horizontal
wave 1 = 3cm cos(0)
wave 2 = 4cm cos(0)

Answer 8

Vertical component :

wave 1 = 3cm sin(0)
wave 2 = 4cm sin(0)

Resultant = sqrt(horizontal component sum ^2 + vertical component sum ^2)

Answer 9

resultant = sqrt(7^2) = 7

Answer 10

i was right

Answer 11

you were but you have to explain how you reached that conclusion @ isherron

Answer 12

Ok that makes sense thanks guys!

Answer 13

you have a medle