The movement of a conical pendulum results when the 0.29 kg yo-yo travels in a horizontal circular path of radius 469 mm with a linear momentum of 0.179 kg-m/s. By impressing zero external moments, the path radius increases 46 mm. Determine the angular velocity of this larger orbit radius in radians/sec.

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