You should be worried about the safety of a healthcare product if you see which of the following claims made?
a. fda approved!
b. miracle cure!
c. scientifically tested!
d. effective in double-blind study!

the answer is B) Miracle cure

Good luck!

B

Explanation:

the answer your looking for is c).

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.