. What is the first step in the movement of the Ocean Conveyor Belt, starting with the northern Atlantic Ocean?

Cooling, high salinity water that travels to the northern Atlantic Ocean from the south, sinks to the bottom of the ocean. To make room, it pushes the existing water down toward Antarctica.

Warming, high salinity water that travels to the southern Atlantic Ocean from the north, sinks to the bottom of the ocean. To make room, it pushes the existing water further north.

Cooling, low salinity water that travels to the northern Atlantic Ocean from the north, rises to the top of the ocean. To make room, it pushes the existing water further north.

Warming, low salinity water that travels to the northern Atlantic Ocean from the south, rises to the top of the ocean. To make room, it pushes the existing water further north.

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

Consider the particle-in-a-box problem in 1d. a particle with mass m is confined to move freely between two hard walls situated at x = 0 and x = l. the potential energy function is given as (a) describe the boundary conditions that must be satisfied by the wavefunctions ψ(x) (such as energy eigenfunctions). (b) solve the schr¨odinger’s equation and by using the boundary conditions of part (a) find all energy eigenfunctions, ψn(x), and the corresponding energies, en. (c) what are the allowed values of the quantum number n above? how did you decide on that? (d) what is the de broglie wavelength for the ground state? (e) sketch a plot of the lowest 3 levels’ wavefunctions (ψn(x) vs x). don’t forget to mark the positions of the walls on the graphs. (f) in a transition between the energy levels above, which transition produces the longest wavelength λ for the emitted photon? what is the corresponding wavele

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate