A 50-g cube of ice, initially at 0.0°C, is dropped into 200 g of water in an 80-g aluminum container, both initially at 40°C. What is the final equilibrium temperature? (Specific heat for aluminum is 900 J/kg•°C, the specific heat of water is 4186 J/kg•°C, and Lf = 3.33 × 10^5 J/kg.)
a. 17.6°C
c. 12.1°C
b. 9.5°C
d. 20.6°C
A
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What will be an ideal response?
The _________ stars are giant stars fusing helium in their cores and then in their shells
a. turnoff-point b. main-sequence c. turnon-point d. hydrogen-flash e. horizontal-branch
The speed of light is given by the value of
A.
B.
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