A marble rolls off of a table that is 0.97 meters tall with a velocity of 1.87 m/s. How long does it take the marble to hit the floor?
O 0.44 seconds
O 0.98 seconds
O 0.39 seconds
O 0.52 seconds

What are atoms of the same element with varying number of neutrons

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 .

In which of the following is positive work done by a person on a suitcase