What is the magnitude of the total electrostatic force on a third particle with charge −9 µc placed on the x-axis at 2 cm ? the coulomb constant is 8. 9875 × 109 n · m2 /c 2. Answer in units of n.

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 .

Most short-period comets do not have randomly oriented orbits because

Where do magnetic lines of force enter earth?