Physics, 23.01.2020 21:31 carterhoward
Brewed coffee is often too hot to drink right away. you can cool it with an ice cube, but this dilutes it. or you can buy a device that will cool your coffee without dilution - a 200 aluminum cylinder that you take from your freezer and place in a mug of hot coffee.
q)if the cylinder is cooled to -20c, a typical freezer temperature, and then dropped into a large cup of coffee (essentially water, with a mass of 500g ) at 85c, what is the final temperature of the coffee? answer in 2 sig figs and answer in celsius.
Answers: 1
initial temperature of the aluminium cylinder, 
mass of coffee, 
initial temperature of coffee, 
specific heat of coffee (assuming water), 
specific heat of aluminium, 
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Brewed coffee is often too hot to drink right away. you can cool it with an ice cube, but this dilut...
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