Consider a linear harmonic oscillator whose hamiltonian is given by 1? д2 н 2m дд? 2 hw(n1/2) with eigenvalues en n 0,1, (1) derive its density matrix in momentum representation, and (2) evaluate the mean energy (h with results obtained in last question

Idont understand the question

Sorry i don’t know what to do

Lexy is correct because angle r is between the incident wave,  n  = 0, and a diffracted wave.

How is it possible that phylogenies based on sequences from nuclear genomes and organellar genomes (i.e., chloroplasts and mitochondria) from the same group of species yield phylogenetic trees with different branching orders?   answer :   the genome of the endosymbiont is more closely related to members of the group in which it originally evolved, while the nuclear genome of the engulfing organism has its own evolutionary trajectory.