To transform electrical energy into mechanical energy, the electromagnet in a motor must rotate in just one direction. What allows this consistent rotation
to occur?
O A. The terminals of the battery frequently switch polarity.
O B. The electric current in the loop of wire frequently reverses
direction.
O C. The commutator frequently causes the loop of wire to turn.
O D. The poles of the permanent magnets frequently switch places.
SUBMIT

Select the correct answer from each drop-down menu. daniel and sanya are scientists. daniel is studying whether the increasing frequency of tropical storms is affecting coastal erosion. sanya is investigating whether the discharge from industrial plants has any impact on the ph concentration of freshwater swamps in the surrounding area. which fields of science are daniel’s and sanya’s studies most closely related to? daniel’s field of study is related to science, and sanya’s field of study is related to .

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.