A moving object at a particular moment has velocity vector less than 1 comma space 1 comma space 1 greater than and acceleration vector less than 1 comma space 2 comma space 3 greater than. What is the tangential component of it's acceleration

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j

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=

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)