Which of the following is true of salt lakes?
a.
the water flowing in to salt lakes comes directly from the ocean.
b.
salt lakes are formed when river bends are cut off.
c.
the water flowing in to salt lakes contains minerals.
d.
salt lakes do not experience shrinking due to erosion.

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

What is the rate of change in a objects position?

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.