Pascal's Principle: A 12,000-N car is raised using a hydraulic lift, which consists of a U-tube with arms of unequal areas, filled with oil with a density of 800 kg/m3 and capped at both ends with tight-fitting pistons. The wider arm of the U-tube has a radius of 18.0 cm and the narrower arm has a radius of 5.00 cm. The car rests on the piston on the wider arm of the U-tube. The pistons are initially at the same level. What is the force that must be applied to the smaller piston in order to lift the car after it has been raised 1.20 m? For purposes of this problem, neglect the weight of the pistons.
A. 0.954 kN
B. 1.88 kN
C. 1.96 kN
D. 3.67 kN
E. 1.20 kN
Answer: C
You might also like to view...
Evaluate the Prandtl number from the data below
GIVEN
FIND
The Prandtl number (Pr)
Transformers: An ideal transformer has 60 turns on its primary coil and 300 turns on its secondary coil. If 120 V at 2.0 A is applied to the primary,(a) what voltage is present in the secondary?(b) what current is present in the secondary?
Fill in the blank(s) with the appropriate word(s).
Electric Field of Point-Charges: Three equal negative point charges -q are placed at three of the corners of a square of side d as shown in the figure. Which one of the arrows shown represents the direction of the net electric field at the center of the square?
A. A B. B C. C D. D
Our calendar is based on the length of the tropical year rather than the sidereal year
Indicate whether the statement is true or false