Ignoring the electron-electron repulsion, estimate the ground state energy of lithium and the ionization energy (minimum energy required to remove one of the electrons). express your answers in ev.

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.