A plane electromagnetic wave traveling in the positive direction of an x axis in vacuum has components Ex= Ey = 0 and Ez = (2.0 V/m) cos[(π × 1015 s−1)(t − x/c)]. When the electric field component is in the positive direction of the z axis at a certain point P, what is the direction of the magnetic field component there?

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)