1.Calculate the evaporative heat output for the lake. The area, volume, and depth of the lake are irrelevant for this problem:
evaporation rate = 4.6 mm/day
H_L = 2,400 J/g
The formula for the Evaporative heat output is Q_e = Q_m*H_L
2.Three bars each of mass 3 kg and lenght of 450mm are welded together and are pin connected to two links be and cf. neglecting the weight of the links, determing the force in each link immediately after the system is released from rest.
y with bar above it = 0.15m