Apply direct differentiation to the ground-state wave function for the harmonic oscillator ψ-e-ax2 where α-tvmk/h (unnormalized) and show that ψ has points of inflection at the extreme positions of the particle's classical motion.

Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented. b)scientists had not completely finalized their results, which took 30 years. c)cigarettes were cheaply available and media channels were very inefficient. d)cigarette manufacturers were trying hard to bring an alternative into the market

Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?