Question
1. A dentist's chair with a person in it weighs 1675 N. The output plunger of a hydraulic system starts to lift the chair when
1. A dentist's chair with a person in it weighs 1675 N. The output plunger of a hydraulic system starts to lift the chair when the dental assistant's foot exerts a force of 49 N on the input piston. Neglecting any difference in the heights of the piston and the plunger, what is the ratio of the area of the plunger to the area of the piston?
2. The wing of an airplane has an average cross-sectional area of 13 m2 and experiences a lift force of 62,000 N. What is the average difference in the air pressure between the top and bottom of the wing?
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1 To find the ratio of the area of the plunger to the area of the piston in the hydraulic system we ...
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Inquiry into Physics
Authors: Vern J. Ostdiek, Donald J. Bord
8th edition
1305959426, 9781337515863 , 978-1305959422
