Final answer:
The practice problem involves converting 5 Newtons of force to pounds, which equals 1.125 lb. For small objects like pennies, grams are the most suitable unit of measurement.
Step-by-step explanation:
The subject matter of the question relates to units of measurement, specifically the conversion between units of force (Newtons) and units of mass. When dealing with weights and forces, units such as grams, kilograms, pounds, and Newtons are commonly used.
For the practice problem provided, if 1 Newton (N) is equivalent to 0.225 pounds (lb), then 5 Newtons of force would be equal to 5 x 0.225 lb, which is 1.125 lb. Hence, the correct option is (b) 1.125 lb.The question regarding weight in kilograms and grams can be addressed by using a scale. For small objects like 5 pennies, a unit like grams would be most suitable for measurement. For instance, knowing that each penny weighs approximately 2.5 grams, the combined weight of 5 pennies can easily be calculated in grams.The best unit for measuring the weight of 5 baby pythons would be grams. Grams are commonly used for measuring small objects or weights, such as coins or small animals. In this case, each baby python's weight would be measured in grams.