(A) Ice-packed vests are worn to protect persons against heat. A vest is packed with 8 packets of ice, each 0.5 kg. How much heat would be absorbed to melt the ice? Given: to melt 1 gm of ice requires 80 cal (336 J) of heat. (B) What is the equivalent still air temperature when the wind velocity is 30mph (48 km/hr) and the actual air temperature of the wind is 40°F (+4.4°C)?

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