Question

1.A hydraulic lift is lifting a car that weighs 14 kN. The area of the piston supporting the car is A, the area of the other piston is a, and the ratio A/a is 101.7. How far must the small piston be pushed down to raise the car a distance of 1.2 cm

2.The pressure inside a bottle of champagne is 4.8 atm higher than the air pressure outside. The neck of the bottle has an inner radius of 0.9 cm. What is the frictional force on the cork due to the neck of the bottle?

3.A hair breaks under a tension of 1.1 N. What is the diameter
of the hair? The tensile strength is 2.0 ✕ 10^{8} Pa.

Answer #1

A) A 1500-kg car is lifted to a height h by a hydraulic lift
containing an incompressible fluid. A force of F_1 applied on a
piston of area A_1 results in a larger force of F_2 on the plunger
of larger area A_2. Suppose the piston has a radius of 0.0120 m and
the plunger’s radius is 0.150 m. Calculate the height to which the
car is lifted if the work done by the plunger is 200 J. (Assume
that...

(a) A 2000-kg car is
lifted to a height h by a hydraulic lift containing an
incompressible fluid. A force of F1 applied on a
piston of area A1 results in a larger force of
F2 on the plunger of larger area
A2 . Suppose the piston has a radius of 0.0120 m
and the plunger’s radius is 0.750 m.
Calculate the height to which the car is lifted if the work done
by the plunger is 200 J. (Assume...

1. A hydraulic lift uses a compressor to compress the hydraulic
fluid with a moving piston (piston A) of radius RA = 4.83 cm. A
second piston (piston B) of radius RB = 18.48 cm is used at the
lift to lift cars. What force must be applied by piston A to lift a
14,871N car with piston B?
2. When a 0.438 kg mass is hung from a certain spring it
stretches 0.119 m to its equilibrium position at...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 19 minutes ago

asked 21 minutes ago

asked 22 minutes ago

asked 26 minutes ago

asked 29 minutes ago

asked 30 minutes ago

asked 31 minutes ago

asked 32 minutes ago

asked 40 minutes ago

asked 42 minutes ago

asked 51 minutes ago

asked 1 hour ago