MC Physics 1180 Make-up NA Questions 17 through 20 are based on the following physical situation: The plunger at the end of syringe has a cross-sectional area of 2.00 cm2, and the narrow end has a cross-sectional area of 1.00 mm2. The syringe contains 30 cc's of saline solution. The plunger is initially compressed by a spring which is squished 1.50 cm from it's equilibrium position. The narrow end is blocked by a cap that exerts a force of 5.00 mN to prevent the solution from leaking out. Assume the syringe is held horizontally. 17. What is the gauge pressure at the wide end of the syringe? a) 1.00x103 Pa b) 2.00x10³ Pa c) 3.00x10³ Pa d) 4.00x103 Pa e) 5.00x103 Pa 200cm² v 2 18. How much force does the spring exert on the plunger? a) 1.00 N b) 1.00 x10³ N c) 1.00 kN d) Both b and c are correct. e) 10.0 kN 21 A 19. 20. What is the spring constant? a) 3.33 N/m b) 6.67x101 N/m c) 6.67x102 N/m d) 6.67x103 N/m e) 6.67x104 N/m What is the absolute pressure at the wide end of the syringe? a) 1.07x105 Pa b) 1.06x105 Pa c) 1.05x105 Pa d) 1.04x105 Pa e) 1.03x105 Pa Page 5 of 5 E= ما ما 6.67 σ