In 1993 funding for a program increased by 0.16 billion dollars from the funding in 1992. in 1994, the increase was 1.14 billion dollars over the funding in 1993. for those three years the funding was 10.97 billion dollars. how much was funded in each of these three years? can you show me the equation?

yes the answer is total mass in unchanged   : )

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.