An electron is acted on by a uniform electric field of strength E⃗ =4.0×104 N C−1j^ and a uniform magnetic field of strength B⃗ =2.0×10−2 T k^. calculate the magnitude of the velocity (in m s-1) of the electron.

think its the third option

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.

where’s the list ? the question is incomplete