The small piston of a hydraulic lift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 15,000 N. Assume the pistons each have negligible mass
(a) Determine the force that must be exerted by the fluid in the lift on the small piston.
(b) Determine the pressure applied to the fluid in the lift.
(a) 600 N (b) 1.2 × 105 Pa
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During a total lunar eclipse, which of the following are true? I. The photosphere of the Sun is obscured by the Moon. II. The Moon is in Earth's umbra. III. The Moon is new. IV. The Moon is full
a. I, III b. II, IV c. I, II, III d. II, III e. I, II, III, IV
The elastic modulus of a material, except for elastomers, is proportional to the _____________of the interatomic potential.
Fill in the blank(s) with the appropriate word(s).
A string with a length of 2.50 m has a mass of 5.00 gm. The velocity of wave propagation along the string is 210 m/s. The tension of the stretched string is
A. 88.2 N. B. 75.0 N. C. 70.2 N. D. 66.7 N. E. 60.2 N.
When a laboratory sample of unknown mass is placed on a vertical spring-scale having a spring constant of 467 N/m, the system obeys the equation y = (4.4 cm) cos(33.3 s-1 t). What is the mass of this laboratory sample?
What will be an ideal response?