A skier is going down a mountain at 3 m/s. They then see their friend up ahead who they want to pass. The skier gets in a tuck and accelerates at an
average acceleration of 2.1 m/s/s for 4 seconds. What is the final speed of
the skier after this time? (use formula sheet) *

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=