Which of the following do excited electrons in hydrogen atoms emit as they return to the ground state neutrons electrons protons photons

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) determine the magnitude and direction of projectile velocity at t= 1.3s b) determine the magnitude and direction of projectile acceleration at t=1.3s

Where do magnetic lines of force enter earth?

What is a costume plot? why is it important to a film or theater production?