Solution Found!
A valve in the cylinder shown in Fig. P1.44 has a
Chapter 1, Problem 44HP(choose chapter or problem)
Problem 44HP
A valve in the cylinder shown in Fig. P1.44 has a cross-sectional area of 11 cm2 with a pressure of 735 kPa inside the cylinder and 99 kPa outside. How large a force is needed to open the valve?
FIGURE P1.44
Questions & Answers
QUESTION:
Problem 44HP
A valve in the cylinder shown in Fig. P1.44 has a cross-sectional area of 11 cm2 with a pressure of 735 kPa inside the cylinder and 99 kPa outside. How large a force is needed to open the valve?
FIGURE P1.44
ANSWER:
Solution 44HP
Step 1 of 2:
A cylinder has a valve of an area of cross-section A. The in and outside pressures are given. We need to find the force needed to open the valve.
The inside pressure Pin = 735 kPa = 735 x 103 Pa
The outside pressure Pout = 99 kPa = 99 x 103 Pa
The area of cross-section A = 11 cm2 = 0.0011 m2