Problem 1 an electromagnetic wave propagates in the +ˆz direction. what can be concluded about the direction of the electric field forming the wave?

select one of the following:
(a) there is no general relation between the direction of the electric component and the direction of propagation.
(b) the electric component must point in the ±zˆ direction.
(c) the electric component must oscillate in the x − y plane.
(d) the electric component must oscillate in the y − z plane.

answer: i don't know the answer good luck

explanation:

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is