Consider a horizontal layer of the dam wall of thickness dx located a distance x above the reservoir floor. What is the magnitud
e dF of the force on this layer that results from adding the water to the reservoir? Express your answer in terms of x, dx, the magnitude of the acceleration due to gravity g, and any quantities from the problem introduction.
1 answer:
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Answer:
Explanation:
given data:
refractive index of lens 1.50
focal length in air is 30 cm
focal length in water is -188 cm
Focal length of lens is given as
focal length of lens in liquid is
rearrange fro