To multiply an applied force while using a simple hydraulic lift, your force should be applied to the
A) large-diameter piston.
B) small-diameter piston.
C) relative piston sizes don't matter
Answer: B
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A reading of a tire gauge tells you that the gauge pressure in a tire is 31 lb/in2 . What is the absolute pressure in the tire? Assume that atmospheric pressure is 14 lb/in2
a. 17 lb/in2 b. 59 lb/in2 c. 45 lb/in2 d. You can't be sure since you may have nitrogen-filled tires.
As a basketball player starts to jump for a rebound, he begins to move upward faster and faster until he leaves the floor. During this time that he is in contact with the floor, the force of the floor on his shoes is:
a. bigger than his weight. b. equal in magnitude and opposite in direction to his weight. c. less than his weight. d. zero.
A 60.0-Hz ac generator with a peak voltage of 110 V drives a series RC circuit with R = 10.0 ? and C = 300 ?F. The peak current in the circuit is
a. 8.24 A. b. 8.84 A. c. 11.0 A. d. 12.4 A. e. 23.5 A.