Na,Mg and Al ha 1,2 and 2 free electrons per atom respectively, if the volume for the three elements are 39.3A3, 23.0 A3, and 16.6 A3, respectively, what is the fermi energy to which the free electron states are filled for each?
A bomber on a military mission is flying at a height of 300m above the ground at 60km/mi. it drops a bomber on a Target on the ground. Determine the acute angle between the vertical angle and the line joining the bomber and the target at instant that bomb is realeased.
A runner approaches the finish line and is 75m away; her average speed at this position is 8m/s. She decelerates at this point at 0.5 m/s2. How long does it take her to cross the finish line from 75cm away?
calculate wave number and energy of free electron by using periodic and vanishing boundary conditions except benzene?
calculate lowest emty and highest occupied state(n)?
If the same force is applied to a ping-pong ball and to a tennis ball that are initially at rest, which ball will move faster?(Assume that there is no friction between the ball and the table.)Explain.