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

question 101

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 1 cal = 4.186 J.

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

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