In a plane electromagnetic wave, the E and B fields are:
Group of answer choices:
a. perpendicular and 90 degrees out of phase
b. parallel and 90 degrees out of phase
c. perpendicular and in phase
d. parallel and in phase
e. perpendicular, can be any phase relative to one another
f. parallel, can be any phase relative to one another

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

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.

A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.