A solid 6.45-cm cube is made with a material that has a density of 1.13 g•cm ^-3 . Calculate the centigram mass of this cube . Recall that the volume of a cubic shape is defined as the product of length x width x height

i think its 100.

hope this !

b) nuclear ive learned that in a pedtrodic table

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.