Please show all work and steps thank you.

A pipe spans a river at a $30$ m wide section while being completely immersed in water $($figure below$).$ The average water temperature is $10C,$ and its velocity is $3\frac{m}{s}$ in a direction perpendicular to the axis of the pipe.

Engine oil flows through the pipe at a rate of $1130\frac{m^3}{h}r,$ and it enters the underwater section of the pipe at $140C.$ The pipe is made of AISI $1010$ carbon steel, has $OD=20cm,$ and $ID=17cm.$

Determine the following:

a$)$ The average convective heat transfer coefficients in the ID and the OD of the pipe $(3$ points$)$

b$)$ The temperature of the oil at the exit of the underwater section of the pipe $(2$ points$)$

c$)$ The total heat transfer from the oil to the water $(2$ points$)$