When to objects moving in opposite direction meet at a point and move with common speed what type of collision is it.

The necleus of an atom is made up of what subatomic particles?

In what direction does an applied force move an object

Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=