34. BLOOD DONATION Every 2 seconds, someone in the United States needs blood. A sample blood donation
is shown. (1 mm= 10-3 mL)
a. One cubic millimeter of blood contains about
104 white blood cells. How many white blood cells
are in the donation? (500mL pack of donation) Write your answer in words.

b. One cubic millimeter of blood contains about
5 X 10 red blood cells. How many red blood cells
are in the donation? Write your answer in words.

c. Compare your answers for parts (a) and (b).

Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?