A 4.47 m long pole stands vertically in a lake having a, Ask an Expert

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Q. A 4.47 m long pole stands vertically in a lake having a depth of 2.22 m. When the sun is 62.6 degrees above the horizon, find the length of the pole's shadow on the bottom of the lake.

Q. A circular parallel plate capacitor with a spacing of 3.0 mm is charged to produce a uniform electric field with a strength of 3.0x10^-6 N/C. What plate radius is required if the stored charge is -1.0 uC

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