‡a particle is confined to move in a one-dimensional box of length l. (a) if the particle is classical, show that the average value of x is 1 2 l and that the root-mean square value is l/31/2. (b) show that for large values of n, a quantum particle approaches the classical values. this result is an example of the correspondence principle, which states that, for very large values of the quantum numbers, the predictions of quantum mechanics approach those of classical mechanics.

it is very well related to a lot of things but with my limited knowledge i can confidently say that the answer is space.

photocells convert light energy to electricity

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

a cold ice-tea.

pour in room temperature or cold water. cover the pitcher and refrigerate. steep white or green tea for 6 to 8 hours; steep black or oolong tea for 8 to 12 hours.jun 28, 2015