Along, straight wire carries a current i. if the magnetic field at a distance d from the wire has magnitude b, what is the magnitude of the magnetic field at a distance 2d from the wire?

answer: the answer is a

answer; (d) spontaneous processes are characterized by the overall conversion of order to disorder;

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.

your answer is, orbit around the nucleus