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A swimming pool has dimensions 32.0 m ? 12.0 m and a flat bottom. The pool is filled to a depth of 2.30 m with fresh water.
(a) What is the force exerted by the water on the bottom?
N down
(b) What is the force exerted by the water on each end? (The ends are 12.0 m.)
N outward
(c) What is the force exerted by the water on each side? (The sides are 32.0 m.)
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A 1.0 kg stone is being whirles at constant speed of 12 m/s in a circle, held on a frictionless surface by a steel wire which is horizontal. The wire is 4.0 m long and its radius is 1.0 mm. Find out the strain in the wire.
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Calculate the Work required (in eV) to move a stationary electron from the location r3 to r5 in a hydrogen atom
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