For an 1-d harmonic oscillator whose hamiltonian is h- 2m if two given by hln> = hwo (n+ )ln > ., eigenvalues and eigenstates are 1 > +12> 1 2> v2 eigenstates of operator a an are alod> = az 16> where a lof> = a, l6 (20) , what's the probability to measure energy 1) if the state at t=0 is 0 ei at time t (> 0)? (10) 2) for lo> ,0 = lø4> , what's the probability to measure a at time t?

Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz