Given the following neckdown in a pipe carrying water (P = 1000 kg/m3) .Your aim is to find the force on the joint.
(a)Draw a Control Volume for this problem.
(b)Find the velocity at point (2)?
(c)Find the pressure at point (2)?
(d)What force does the fluid experience?
(e)What force does the joint experience?

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk