The ha line of the balmer series is emitted in the transition from n-3 to n 2. compute the wavelength of this line for h and 2h. [note: these are the electronic hydrogen and deuterium atoms, not the muonic forms.]

Acricket ball of 70g moving with a velocity of 0.5 m/s is stopped by a player in 0.5s what is the force applied to stop the ball

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island