An electromagnetic wave travels in free space in the +y direction, as shown in the figure. If the electric field at the origin is along the +z direction, what is the direction of the magnetic field? 
Definitions:
Perpetuity
A type of annuity that pays an infinite series of cash flows, continuing forever.
Constant Rate
A fixed, unchanging rate at which a specific quantity grows or decays over time.
Compounded Annually
The process of earning interest on both the initial principal and the accumulated interest from previous periods, calculated once per year.
Compounded Monthly
A calculation method for interest where the interest earned is added to the principal at the end of each month, causing subsequent interest to be based on the increased balance.
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