A 0.0020-kg lead bullet is traveling at a speed of 240 m/s when it embeds in a block of ice at 0°C.If all the heat generated goes into melting ice,what quantity of ice is melted? (Lf = 80 kcal/kg,the specific heat of lead = 0.03 kcal/kg⋅°C,and 1 kcal = 4 186 J)
A) 1.0 × 10−2 kg
B) 3.4 × 10−4 kg
C) 2.8 × 10−3 kg
D) 1.7 × 10−4 kg
E) 1.1 × 10−5 kg
Correct Answer:
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