Diagrams; equations; computer simulations
Answer:
Replicability
Explanation:
In the principles of scientific thinking, applicability refers to whether we can recreate a certain same of study with same measurement. The purpose of this is so other researchers could repeat the same experiment and confirm whether the result of the previous works are actually correct.
In the case above, the researchers want to find out if fear is acquired faster to a prepared stimulus.
This will create a problem in term of applicability because the source of fear that exist in people extremely varies from one to another. It also constantly changed over the course of time. Because of this, it is impossible for other researchers to recreate the experiment in a similar situation. The result from using different subjects will be invalid and cant be used to confirm the previous experiments.
True, before the early 20th century, Russia was known as an agricultural society.
The gravitational force is jointly proportional to the masses of the objects involved and inversely proportional to the square of the distance between them. You've mentioned distance, so the other contributor is
1. Mass