Two pistons push down on the fluid filling two cylinders connected by a narrow hose, as shown in the figure. The area A 1 is 1 square inch, and the area A 2 is 10 square inches. A force of 4 pounds is exerted downward on piston 1, as shown. 
The pressure on A 1 is __________.
Definitions:
Health Care Barriers
Factors that impede individuals' access to health care services, including financial, geographical, or cultural issues.
Medication Adherence
The extent to which a person's behavior in taking medication corresponds with agreed recommendations from a healthcare provider.
Future Behaviors
Predicted actions or conduct that an individual will exhibit in the future.
Predict Intentions
The psychological process of inferring the future actions or decisions of others based on observed behavior or information.
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