d. The figure here illustrates force-extension graph for a stretched spiral spring. Determine the work done on the spring 9. (a) List two factors each that affect heat loss by: (i) Radiation; (ii) convection, (b) State two factors that determine the quantity of heat in a body. (c) Explain the statement: The specific latent heat of vaporization of mercury is 2.72 x 5 1 10 Jkg . (d) A jug of heat capacity 250 J kg-1 contains water at 28°C An electric heater of resistance 35  connected to a 220 V source is used to raise the temperature of the water until it boils at 100°C in 4 minutes. After another 5 minutes, 300 g of water has evaporated. Assuming no heat is lost to the surroundings, calculate the: (i) Mass of water in the jug before heating; (ii) Specific latent heat of vaporization of steam. -1 -1 [Specific Heat Capacity of Water = 4200 Jkg K ] Want more Physics WASSCE Theory Exam Questions Get the complete WAEC Phyics Exam Past Questions Paper Objective & Essay in PDF or Ms-Word from us. Continue reading to know how…..