- #1

- 475

- 1

## Homework Statement

## Homework Equations

## The Attempt at a Solution

So I set up:

2.0 nm = (6.0 nm)cos(kx + (3000 rad/s)t

_{1}+ phi)

-2.0 nm = (6.0 nm)cos(kx + (3000 rad/s)t

_{2}+ phi)

My professor said if there's a phi you can usually ignore it so I'm just going to remove them:

2.0 nm = (6.0 nm) * cos(kx + (3000 rad/s)t

_{1})

-2.0 nm = (6.0 nm) * cos(kx + (3000 rad/s)t

_{2})

Simplify them:

1/3 nm = cos(kx + (3000 rad/s)t

_{1})

-1/3 nm = cos(kx + (3000 rad/s)t

_{2})

I need to solve for each time, but we have 3 unknowns and only two equations so I'm not sure what else to do from here.