Question

The following equations, all using SI units unless otherwise noted, describe waves propagating along five different strings, all with the same length and the same tension. Which, if any, of the strings have equal masses?

• String A: y(x,t) = (2cm)sin(3x−10t)
• String B: y(x,t) = (1cm)sin(1x−4t)
• String C: y(x,t) = (1cm)sin(3x−4t)
• String D: y(x,t) = (1cm)sin(4x−12t)
• String E: y(x,t) = (2cm)sin(6x−24t)

If two or more strings have equal mass, select all of them below. If all the masses are different, select the last option (none of the above).

Select all that apply:

String A

String B

String C

String D

String E

All of the strings have different masses.

Answer 1