The device pictured above is designed to sink to a depth of 30 meters below the

Question

The device pictured above is designed to sink to a depth of 30 meters below the surface of a lake before releasing some chemicals. Until the right depth is reached, the water is held out of the compartment holding the chemicals by a spring pushing against a faceplate. The spring has been compressed by 15 centimeters before the faceplate was installed. If the faceplate has radius of 7 centimeters, what must the spring constant be? (Water has a density of ? = 1000 kg/m3 ) Assume that the pressure inside the container is the same as at the surface of the lake.

Explanation / Answer

please provide the figure

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