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23 Nov 2019
1. How many calories are needed to raise 500 grams of water from 25degrees Celsius to 40 degrees Celsius?
2. Suppose a 1 meter long bar expands 0.5 centimeters when heated.By how much will a 100 meter long bar of the same material expandwhen similarly heated?
3. Explain why a body of water freezes from the top down ratherthan from the bottom up.
1. How many calories are needed to raise 500 grams of water from 25degrees Celsius to 40 degrees Celsius?
2. Suppose a 1 meter long bar expands 0.5 centimeters when heated.By how much will a 100 meter long bar of the same material expandwhen similarly heated?
3. Explain why a body of water freezes from the top down ratherthan from the bottom up.
