Use the raising and lowering operator method to compute (n |& 2n) and (n|p2|n) for the general harmonic oscillator energy eigenstate | n). use your result to verify that you reproduce the expected result for (n| h |n). data 2 н - 2m 1 242 = hw ( â*â + п 3 0, 1, 2, 3, en = hw 2 mw р 2fh mw mw 2h mw [a, a' 1

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

Asystem containing an ideal gas at a constant pressure of 1.22×10^5 pa gains 2140 j of heat. during the process, the internal energy of the system increases by 2320 j. what is the change in volume of the gas?

Who was the first scientist to measure speed as distance over time?