Give the general name for the type of quantity that has magnitude but no particular direction

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?