[" The magnitude of poynting vector and "],[" electric field vector are respectively "S],[" and "E," then "]

The magnetic of poynting vector and electric field vector are respectively S and E , then

The direction of poynting vector represents

The direction of poynting vector represents

Is electric field scalar or vector ? Why ?

The expression for electric field in vector form is

Write down the Electric field in vector form ?

The magnitude of scalar and vector products of two vector are 48 sqrt(3) and 144 respectively. What is the angle between the two vectors ?