Which of the options is the best definition of a vector?

a. a specific type of imaginary number
b. a quantity with both magnitude and direction
c. a magnitude described as a number
d. the magnitude of a value

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive