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April 21, 2014

Homework Help: PHYSICS 102E

Posted by Akitsuke on Sunday, December 14, 2008 at 7:15am.

1. How much ice at -10 degrees Celsius is required to cool a mixture of 0.1 kg ethyl alcohol and 0.1 kg water from 20 degrees Celsius to 0 degrees Celsius?

2. Find the heat produced by 1 KW heating element in one hour.

3. A 3g lead bullet at 30 degrees Celsius is fired at a speed of 240 m/s into a large block of ice at 0 degrees Celsius in which it becomes embedded. What quantity of ice melt?

thanks. :)

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