Two pistons push down on the fluid filling two cylinders connected by a narrow hose, as shown in the figure. The area A1 is 1 square inch, and the area A2 is 10 square inches. A force of 4 pounds is exerted downward on piston 1, as shown
The pressure on A2 in psi is
a.
0.25.
b.
0.4.
c.
4.
d.
10.
e.
40.
c
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