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
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)