A particle in an infinite square well has the initial wave function :
Ψ(x , 0) = A [(x/L)³ - (3/2)(x/L)² + (1/2)(x/L)]
in the interval 0 < x < L and zero elsewhere.
Find (a) the wave function at a later time, (b) the probabilities of energy measurements, and (c) the expectation value of the energy.

An ideal gas is held in a container at constant volume. initially, its temperature is 5 degrees c and its pressure is 1.2 atm. what is its pressure when its temperature is 43 degrees c? answer in units of atm

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

Steelhead trout migrate up stream to spawn. occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b. leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?