Consider the reflection and transmission of a left-incident current of particles at the potential 0 for x0 v (r) _ vo for x> 0 proceed along the following lines: (a) solve the stationary schrödinger equation separately in the two regions and 0 for an energy e > vo. 0 (b) sketch the potential and indicate with arrows which parts of the solutions you got in (a) to zero, so that the remaining three represent a right-moving incident wave and a left-moving reflected wave in the region x < 0, and a right-moving transmitted wave in the region x > 0. are left- moving and which are right-moving. set one of the coefficients (c) calculate the incident, reflected, and transmitted currents, and find expressions for the reflection probability r t jirans/jinc (watch out here! . t comes out differently than in the example we did in the lecture.) jrefi/in and the transmission probability (d) impose the continuity of o and ôø/dx at the boundary equations you get to calculate r and t. find rt (if you get anything other than 1 for the sum of reflection and transmission probabilities, check your calculation again and find the mistake you have made.) 0, and use the two (e) give r and t as functions of e. (only the ratio e/vo matters, and m and h should drop out.)

magnityde and direction

so here is the information for current research:

-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

-it's clean and sustainable

-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

-almost everywhere, the shallow ground or upper 10 feet of the earth's surface maintains a nearly constant temperature between 50° and 60°f (10° and 16°c)

-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

according to jean piaget, in what stage of cognitive development are children able to understand conservation task?

b. preoperational

just took it