Final answer:
The value of 8 divided by the product of bc is approximately 1.28 × 10^-11 cm^-2, rounded to three significant figures.
Step-by-step explanation:
The question asks for the value of 8 divided by the product of bc. To find the value of bc, we need to multiply p and c. The given values are p = 250 cm and c = 2500 × 1010 mm. To perform the multiplication, we need to convert the units to a common unit. Since 1 cm = 10 mm, we can convert c to cm by dividing by 10. This gives c = 2500 × 109 cm. Now we can multiply p and c to get bc = 250 cm × 2500 × 109 cm = 6.25 × 1011 cm2.
Now we can substitute the values of 8 and bc into the expression 8 / bc. We get 8 / (6.25 × 1011 cm2). Since there are no significant figures specified for 8, we assume that it has an infinite number of significant figures. Therefore, the division will result in an answer with the same number of significant figures as bc. Thus, the answer is approximately 1.28 × 10-11 cm-2, rounded to three significant figures.