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A 30.4-kg block of ice at 0 °C is sliding on a horizontal surface. The initial speed of the ice is 7.00 m/s and the final speed is 3.46 m/s. Assume that the part of the block that melts has a very small mass and that all the heat generated by kinetic friction goes into the block of ice, and determine the mass of ice that melts into water at 0°C. Number Units

A 30.4-kg block of ice at 0 °C is sliding on a horizontal surface. The initial speed of the ice is 7.00 m/s and the final speed is 3.46 m/s. Assume that the part of the block that melts has a very small mass and that all the heat generated by kinetic friction goes into the block of ice, and determine the mass of ice that melts into water at 0°C. Number Units

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Current Attempt in Progress A 30.4-kg block of ice at 0 °C is sliding on a horizontal surface. The initial speed of the ice is 7.00 m/s and the final speed is 3.46 m/s. Assume that the part of the block that melts has a very small mass and that all the heat generated by kinetic friction goes into the block of ice, and determine the mass of ice that melts into water at 0 °C. Number Units
Transcribed Image Text:Current Attempt in Progress A 30.4-kg block of ice at 0 °C is sliding on a horizontal surface. The initial speed of the ice is 7.00 m/s and the final speed is 3.46 m/s. Assume that the part of the block that melts has a very small mass and that all the heat generated by kinetic friction goes into the block of ice, and determine the mass of ice that melts into water at 0 °C. Number Units
Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 120 km long. 37.9 km wide, and 161 m thick. (a) How much heat in joules would be required to melt this iceberg (assumed to be at 0 °C) into liquid water at 0 °C? The density of ice is 917 kg/m³. (b) The annual energy consumption by the United States in 1994 was 9.3 x 1019 J. If this energy were delivered to the iceberg every year, how many years would it take before the ice melted? (a) Number (b) Number Units Units
Transcribed Image Text:Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 120 km long. 37.9 km wide, and 161 m thick. (a) How much heat in joules would be required to melt this iceberg (assumed to be at 0 °C) into liquid water at 0 °C? The density of ice is 917 kg/m³. (b) The annual energy consumption by the United States in 1994 was 9.3 x 1019 J. If this energy were delivered to the iceberg every year, how many years would it take before the ice melted? (a) Number (b) Number Units Units
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