A 65-G Iron Meteor Hits the Earth at a Speed of of 295

question 68

Multiple Choice

A 6.5-g iron meteor hits the earth at a speed of 295 m/s.If its kinetic energy is entirely converted to heat in the meteor,by how much will its temperature rise? The specific heat of iron is 113 cal/kg ∙ °C,and
.

• A)92.0°C
• B)57,100°C
• C)0.147°C
• D)384°C

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