The bulk modulus к is given by the second derivative of the total energy etotal with respect to the volume, 1 0etot (a) (30 pts) estimate the bulk moduli of alkali metals by assuming that the total energy is equivalent to the kinetic energy of the fermi gas. (alkali metals are well modeled by simple free electron gas contributing 1 electron per atom to the gas). (b) (5 pts) discuss and describe your ideas of what has been neglected in this model for this purpose)

Aforce of 100 newtons is used to move an object a distance of 15 meters with a power of 50 watts. find the work dine and the time it takes to do the work

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Imagine an isolated positive point charge q (many times larger than the charge on a single proton). there is a charged particle a (whose charge is much smaller than charge q) at a distance from the point charge q. on which of the following quantities does the magnitude of the electric field created by charge q at particle a's position depend? check all that apply.the type of the charge on the charged particle athe relative orientation between q and a (while the distance between q and a is fixed)the specific location of the charged particle a (while the distance between q and a is fixed)the amount of the charge on the point charge qthe specific location of the point charge q (while the distance between q and a is fixed)the distance between the point charge q and the charged particle athe amount of the charge on the charged particle a