The downward foce applied at the 3rd pin is 20kn
the .4 measurements are in meters
link ab is to be made of a steel for which the ultimate
normalstress is 450mpa. determine the cross-sectional area for
abfor which the factor of safety will be 3.50. assume that thelink
will be adequately reinforced around the pins at a andb.

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

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.