Atruncated solid cone is of circular cross section, and its diameter is related to the axial coordinate by an expression of the form d=ax3/2 , where a= 1.0 m-1/2. the sides are well insulated, while the top surface of the cone at x1 is maintained at t1 and the bottom surface at x2 is maintained at t2 . what is the rate of heat transfer across the cone if it is constructed of pure aluminum with x1= 0.075 m, t1= 135°c, x2= 0.225 m, and t2= 20°c? evaluate the properties of aluminum at t¯= 333 k

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented