Author Question: Two waves travel simultaneously through the same medium. The first wave is described by y1(x,t) = ... (Read 39 times)

sam.t96 · **on:** Jul 29, 2018

Two waves travel simultaneously through the same medium. The first wave is described by y1(x,t) = (2.00 cm)coskx-t and the second wave by y2(x,t) = (3.00 cm)cos(kx-t+). If the resulting wave has an amplitude 4.

00 cm, what is a possible value of ? A)

0.782 rad

B)

0.250 rad

C)

0.644 rad

D)

0.833 rad

E)

1.32 rad

Question 2

Three identical resistors are connected in parallel to a 12-V battery. What is the voltage of any one of the resistors?

A)

36 V
B)

24 V
C)

12 V
D)

4 V
E)

zero