How many minutes does it take light from the sun to

8. How many minutes does it take light from the sun to reach Earth? (The distance
m
9. Normal body temperature is 78.0°F. Calculate this temperature in degrees Celsius
and Kelvin. (4 points)
10. Bromine is a reddish-brown liquid. Calculate its density (in g/mL) if 586 g of the
substance occupies 188 mL. (4 points)
11. Aluminum is a lightweight metal (density = 2.70 g/cm 3 ) used in aircraft construction,
high-voltage transmission lines, beverage cans, and foils. What is its density in kg/m 3 ?
(4 points)
3
12. Calculate the mass of a cube of platinum of edge length 0.040 mm (the density of
platinum = 21.4 g/cm 3 ). (5 points)
4
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