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Question
A hydraulic press has one piston of diameter 2.0 cm and the other piston of diameter 8.0 cm. What force must be applied to the smaller piston to obtain a force of 1600 N at the larger piston:A) 100 N
B) 400 N
C) 1600 N
D) 6400 N
E) 26000 N
Answer
This answer is hidden. It contains 1 characters.
Related questions
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The intensity of the microwave background radiation, a remnant of the big bang:
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D) is proportional to the square of the distance from us
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The velocities of distant objects in the universe indicate that the time elapsed since the big bang is about:
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Q:
Any meson is a combination of:
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Q:
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Q:
In a photoelectric effect experiment at a frequency above cut off, the stopping potential is proportional to:
A) the energy of the least energetic electron before it is ejected
B) the energy of the least energetic electron after it is ejected
C) the energy of the most energetic electron before it is ejected
D) the energy of the most energetic electron after it is ejected
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Q:
In a photoelectric effect experiment at a frequency above cut off, the number of electrons ejected is proportional to:
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Q:
The units of the Planck constant hare those of:
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Q:
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Q:
A particle with rest mass m moves with speed 0.6c. Its kinetic energy is:
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A particle with zero mass and energy Ecarries momentum:
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Q:
According to the theory of relativity:
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Q:
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Q:
An event occurs at x= 500 m, t= 0.90 in one frame of reference. Another frame is moving at 0.90cin the positive xdirection. The origins coincide at t= 0 and clocks in the second frame are zeroed when the origins coincide. The coordinate and time of the event in the second frame is:
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Q:
A meter stick moves sideways (that is, in a direction perpendicular to its length) at 0.95c. According to measurements taken in the laboratory, its length is:
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Q:
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Q:
A train traveling very fast (v= 0.6c) has an engineer (E) at the front, a guard (G) at the rear and an observer (S') exactly half way between them. Both E and G are equipped with yellow signaling lamps. The train passes a station, closely observed by the station master (S). Both E and G use their lamps to send signals. According to both S and S' these signals arrive simultaneously at the instant S' is passing S. According to S':
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Q:
Figure (i) shows a double-slit pattern obtained using monochromatic light. Consider the following five possible changes in conditions:
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2) increase the frequency
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4) increase the separation between the slits
5) decrease the separation between the slits
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Q:
The resolving power of a telescope can be increased by:
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B) increasing the lens diameters
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Q:
Light of wavelength 480 nm falls on a slit of width 3.5 m. What is the relative intensity (that is, the value of I/Im) of the diffraction pattern at an angle of 18?
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Q:
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