If toy weighs 19.6 newtons on earth, what is the mass of the toy?

In a system, when potential energy decreases, then entropy also decreases. true false

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 .

Abar magnet cut in half will form a total ofpoles.a)fourb)eightc)two