Calculate the molar mass of the compound sulfur trioxide (SO3). Use the periodic table to obtain the atomic weight of the elements. Express your answer to the correct number of significant figures.

d.) circle motion requires a force to give it a centripetal acceleration.

the answer would be c

12 is it do you think so

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.