A 13000 N vehicle is to be lifted by a 25 cm diameter hydraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomplish this?
A) 260 N
B) 520 N
C) 2600 N
D) 5200 N
E) 13000 N
B
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A total solar eclipse occurred in Wolf Point, Montana on Feb. 26, 1979 . When was (will) this eclipse again (be) visible in Montana?
a. August of 1979 b. March of 2033 c. March of 1997 d. March of 1979 e. January of 2000
From center to surface, which of the following correctly lists the interior layers (defined by density) of a terrestrial world?
A) core, mantle, crust B) mantle, core, crust C) mantle, crust, core D) core, crust, lithosphere
From a latitude of 60ºN during the winter, the Sun will
A) spend most of each day below the horizon. B) spend most of each day above the horizon. C) never be seen above the horizon. D) spend a few weeks continuously below the horizon.
When we say that a material sample has reached its elastic limit, we mean that
A) if any further stress is applied, the sample will break. B) if any further stress is applied, the deformation of the sample will not be reversible. C) the deformation no longer follows Hooke's law. D) the material will continue deforming with no further additional stress. E) None of the other choices is correct.