Having studied tectonics in school, roberto grew interested in tectonic plates and how they move. plates move in different ways along plate boundaries.

what determines how the plates interact at their boundaries?

a. the materials the plates are made of
b. the difference in thickness of the plates
c. the kind of plates they are and whether they keep moving
d. the kind of boundary and the directions in which the plates are moving

if you mean hydrogen and oxygen then water is the product

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.