Let c be the unit circle, oriented counterclockwise, and consider the vector field f~ = xy ˆı +y2 ˆ. which portions of c contribute positively to the flux of f~ ? which portions contribute negatively?

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."