A Box of Mass M Is Pressed Against (But Is

question 2

Multiple Choice

A box of mass m is pressed against (but is not attached to) an ideal spring of force constant k and negligible mass,compressing the spring a distance x.After it is released,the box slides up a frictionless incline as shown in the figure and eventually stops.If we repeat this experiment but instead compress the spring a distance of 2x

• A)the box will go up the incline twice as high as before.
• B)just as it moves free of the spring,the box will be traveling twice as fast as before.
• C)just as it moves free of the spring,the box will be traveling four times as fast as before.
• D)just as it moves free of the spring,the box will have twice as much kinetic energy as before.
• E)just before it is released,the box has twice as much elastic potential energy as before.

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Definitions:

Groundwater

Water that is located beneath the earth's surface in soil pore spaces and in the fractures of rock formations.

Huge Springs

Large natural outlets where groundwater flows out of the ground, often the result of an aquifer being filled to the point that the water overflows onto the land surface.

Hydrologic Cycle

The continuous movement of water on, above, and below the surface of the Earth, including processes such as evaporation, precipitation, and runoff.

Mid-Ocean Ridges

Undersea mountain ranges where new oceanic crust is formed through volcanic activity and seafloor spreading.