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(ii) The lead sphere has a radius of 1.2 mm. As it falls it cools from 615K to 370K. The molten lead solidifies at 601 K. Calculate the mean rate at which energy is transferred from the lead sphere to the surroundings. You should assume that the specific heat capacities of liquid lead and solid lead are the same. density of lead = 1.13 x 10*kgm-3 specific latent heat of lead = 2.47 x 10*Jkg-1 specific heat capacity of lead = 130 Jkg-K-1 (6) Mean rate of energy transfer from lead =20 Lead shot consists of small lead spheres. Originally lead shot was made by dripping molten lead through a copper sieve from the top of a 'shot tower' . The lead cooled as it fell, before landing in water and producing solid lead spheres. Figure 1 shows a shot tower, and figure 2 shows the process of making lead shot in a shot tower. molten lead DO NO copper sieve falling lead sphere RITE IN THIS AREA cold water (Source: @ Espresso Addict) Figure 1 Figure 2 To avoid producing steam, the temperature of a lead sphere was below 100'C as it reached the cold water. (a) (i) A lead sphere falls through a distance of 41.5 m. Show that it takes about 3s for the lead sphere to fall through this distance. Assume that resistive forces are negligible. (2) HIS ARE