In accordance with the Bohr's model, find the quantum number that characterises the earth's revolution around the sun in an orbit of radius 1.5 x 1011 m with orbital speed 3 x 104 m/s. (Mass of earth = 6.0 x 1024 kg.)

The quantum state of an electron in an atom is described by quantum numbers n = 6, ℓ = 5, and mℓ = 2. The z-component orbital angular momentum of the electron is measured to be x × h/2π, where h is Planck’s constant. What is the number x (remember to use the scientific notation)?

The energy of a photon emitted in a transition from the n = 3 state to the n = 2 state is Question 17 options:   1.5 eV   1.9 eV   3.4 eV   10.2 eV   13.6 eV

The electron in a certain hydrogen atom has an angular momentum of 2.583×10−34 J.s. What is the largest possible magnitude for the z-component of the angular momentum of this electron? For accuracy, use h=6.626×10−34 J⋅s. find Number Units

An  atom has a mass of 1.17 × 10-26 kg.  If we consider this atom vibrating with simple harmonic motion with a force constant of  k =49.8 N/m (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ∙ s, ħ = 1.055 × 10-34 J ∙ s, 1 eV = 1.60 × 10-19 J) Determine the  ground state energy of this system, in hundredths of electron Volts. (answer x 10-2 eV).  Please give your answer with two decimal places.