What’s the degeneracy of electron states in graphene and how does this affect the density of states?
if the density of states of a spinless particle in k-space is
dn=a dk 2π
show the total energy of conducting electrons at zero temperature in graphene is
e=
where epsilonf is the fermi energy and vf the fermi speed

it is called kinetic energy

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

answer a fan shaped mass of sediment deposited at the base of a mountain front do to an abrupt change in stream gradient;